Winter is coming. And this is more than just a stock phrase from Game of Thrones. Whether you are looking for yourself or a loved one, you are probably seeking the best winter boots for men.
Winter boots are a necessity depending on the climate or your planned outdoor activities. Feet can easily get frostbitten without the right protective covering, so a good pair of winter boots can save your toes.
In extreme cases, your high-quality pair of winter boots could save your life.
Most likely, however, you will just need some sturdy boots to get you through the mundane snow and ice that blows through every winter.
In this review round-up, we will take a look at some of the best winter boots for men available.
COMPARISON TABLE – BEST WINTER BOOTS FOR MEN
- A True Performance Product
- Quality Assured
- Designed With The User In Mind
- Tested For Function In A Real-World Environment
- User-Friendly Style And Design
- FORM MEETS FUNCTION. Warm and comfortable ThermoBall Eco insulation pairs with high-traction rubber outsoles to make these slip-on booties ideal for base camp, après ski or shuffling through the snow to grab the morning paper.
- WATER-RESISTANT DURABILITY. Made with a recycled ripstop upper and Durable-Water Repellent (DWR) finish, these highly durable winter boots are water-resistant and warm.
- RECYCLED INSULATION. Take on the cold with superior warmth and recycled materials. Thermoball Eco uses small, round synthetic fiber clusters that closely mimic the way down insulates: trapping heat within small air pockets for warmth retention.
- SUPERIOR TRACTION. Explore confidently in any condition thanks to a highly durable partly-recycled outsole. From peak to peak, you'll love the ability to stay grounded and maintain traction on your expeditions.
- TAKE ON THE DAY. An essential closet staple, this boot is a go-to classic anytime. Enjoy a comfortable fleece collar lining and a collapsible heel with elastic side panels for easy on/off. Proudly wear these as a badge of exploration with The North Face.
- OMNI-TECH: Our proprietary technology provides air-permeable protection that's waterproof and breathable, keeping mother nature's elements out, at the same time allowing the inside to breathe, keeping your feet dry and comfortable no matter the conditions
- ALPINE STYLE & PERFORMANCE: Waterproof leather upper, injection molded shell, 200 grams of insulation, superior midsole cushioning, and an advanced traction outsole that will get you through every epic adventure
- TAKE ON THE COLD: A re-energized update of our cold-weather classic. Versatility and protection make this the perfect boot for wet, cold, and snowy weather
- ALL-DAY SUPPORT: Incorporates our TechLite lightweight midsole that provides lasting comfort, superior cushioning, and high energy return, mile after mile
- ALL TERRAIN READY: Our signature Omni-Grip outsole is an indoor safe, non-marking rubber that provides sure-footed traction from trailside to mountain face
- Warm hardwearing and winter-proof: WarmWair is a soft insulated lining crafted from carefully selected materials
- The 2976 is the rugged Docs take on the classic Chelsea boot.
- Ambassador is a heavyweight and oily leather that’s been tumbled – meaning it retains its natural characteristics and markings. Clean with a damp cloth and care with Dr. Martens Wonder Balsam
- Goodyear-welted and reinforced with DM's signature yellow welt stitch
- Waterproof membrane seals out water and lets moisture escape Protective shell keeps feet dry Full grain leather upper Snowshoe strap ridge for stability Gaiter D-Ring Fleece lining for added warmth Kinetic Fit BASE removable contoured insole Merrell Air Cushion in the heel absorbs shock Lightweight EVA foam midsole Vibram Arctic Grip All Terrain outsole design for grip on wet ice and mixed winter conditions
- We recommend buying boots a size down from your usual sneaker size, so if you’re a sneaker size 11 order a size 10.5
- Premium full-grain leather uppers
- Breathable ReBOTL fabric linings are made with 50% PET (recycled plastic bottles)
- Removable anti-fatigue footbeds provide all-day comfort and support
- Covered by the Timberland Limited Warranty; For complete terms, limitations, and instructions on how to make a warranty claim, please visit the Timberland website
- WATERPROOF BOOT: Made with waterproof suede leather and textile upper and features a seam-sealed waterproof construction; Ideal for cold weather outdoor activities
- INSULATED WARMTH: Features 200g insulation and a waterproof thermal rubber shell that keeps you warm down to -25F; 2.5 mm bonded felt frost plug provides extra warmth in the midsole
- DESIGNED FOR COMFORT: Removable EVA footbed and textile lining that's comfortable all day long in cold, wet winter weather
- GRIPPY OUTSOLE: Chunky molded rubber outsole gives you a little extra traction in icy conditions so you can trust every step
- FUNCTION MEETS FASHION: SOREL creates bold, always-ready footwear that's built to take on non-stop days and nights in the city
- Vibram Arctic Grip outsole provides unparalled traction on ice even in the most extreme winter conditions
- 200 grams M Select WARM lightweight, low bulk insulation keeps you comfortable
- Nubuck leather and mesh upper
- A True Performance Product
- Quality Assured
- Designed With The User In Mind
- Tested For Function In A Real-World Environment
- User-Friendly Style And Design
- Lace-up boot featuring breathable, waterproof KEEN.Dry membrane and plush padded collar
- Pull-on loops at tongue and counter. Fit Tip-This style is running a half size small. Suggest ordering a half size larger than usual size
- 200g KEEN.Warm insulation;Gaiter ring hook
- Dual-compound snow and ice grippy rubber outsole
- MOVE WITH EASE. These lightweight, flexible winter boots keep you light on your feet while navigating treacherous winter terrain. Waterproof suede uppers combine with ample insulation for warmth while and fleece lining provides comfort against your feet.
- WATERPROOF DURABILITY. Made with a BLC-compliant suede upper and waterproof construction, these highly durable winter boots are water-resistant and warm so you can hike, splash and explore comfortably in even the nastiest conditions.
- RECYCLED INSULATION. Take on the cold with superior warmth and recycled materials. With 200 grams of Heatseeker Eco insulation, you'll easily stay warm — even in wet weather.
- COMFORT & SUPPORT. Never Stop Exploring with thoughtful features that help you go further — experience cushy comfort with an injection-molded EVA midsole while a nylon midfoot shank offers long-lasting arch support.
- WINTER GRIP OUTSOLE. Explore confidently in snowy conditions thanks to a highly-durable and winterized rubber outsole. From peak to peak, you'll love the ability to stay grounded and maintain traction on your winter expeditions.
- Rated to -40 degrees F
- Waterproof leather
- Removable 9MM Thermo Plus felt innerboot
- Sorel AeroTrac non-loading outsole. Features seam sealed waterproof construction and 0.098 inch bonded felt frost plug midsole
- Faux Fur
- CONSCIOUSLY CREATED: environmentally preferred leather; hides sourced from leather working group certified tanneries that use fewer chemicals; environmentally preferred durable water repellent dwr helps prevent leather from drying out
- MATERIAL & CLOSURE: water resistant premium leather for durable protection against the elements; quick dry lining for active use; lace lock bungee capture system provides a secure fit while offering a quick and easy way to get footwear on and off
- GRIP & PROTECTION: keen.all-terrain rubber is created for muddy and rocky surfaces; 5mm multi directional lugs offer superior grip on slippery terrain; non marking rubber outsoles leave no imprint when walking indoors; toe bumper for added durability
- SUPPORT & COMFORT: external stability shank helps with mobility and torsion control on uneven surfaces; heel capture system for added stability; dual density footbed for long lasting comfort; durable underfoot cushioning system for long lasting use
- FIT & CARE: this style is running ½ size big; KEEN suggests ordering a ½ size smaller than your usual size; gently brush leather with a soft bristle brush or hand towel to remove loose dirt and debris; tough stains may require a leather cleaner
- Sorel Men's Boots: Leather moc boot with seam-sealed waterproof construction and sneaker-like comfort
- Waterproof Boots for Men: Iconic moc toe boots for men are perfect for wet winter weather and beyond
- Expertly Made: Waterproof nubuck leather, suede collar and tongue top, and removable molded EVA footbed
- Timeless Classic Foot Support: Rubber sole secures traction and protects your feet during long walks
- Everyday Comfort: Heel height of 1 1/9" and platform height of 1/2" for all-day wear
- OMNI-HEAT: Our patented Heat Reflective garments are the ultimate body heat management system for outdoor performance. The interior lining consists of our metallic dot pattern designed to retain heat, while the breathable fabric dissipates moisture.
- URBAN STYLE MEETS FUNCTIONAL BOOT: Combining utility and function with a fresh, versatile cupsole design, this winter boot can go from the streets to the trails without compromising durability or protection.
- WARM AND WATERPROOF: The PU coated leather and textile upper features waterproof bootie construction, along with rich 200g insulation to keep feet warm over harsh frozen terrain.
- ALL WEATHER TRACTION: A stylish pair of boots with an outsole integrating fiberglass particles in the rubber for superior grip on wintry surfaces.
- BUILT TO LAST: Columbia’s attention to detail is what sets our apparel apart. Specifying only the highest quality materials, expert stitching and craftsmanship. This is a long-lasting footwear that you will enjoy for seasons to come.
- OMNI-TECH: Our proprietary technology provides air-permeable protection that's waterproof and breathable, keeping mother nature's elements out, at the same time allowing the inside to breathe, keeping your feet dry and comfortable no matter the conditions
- OMNI-HEAT: Our patented Heat Reflective boots are the ultimate body heat management system for outdoor performance. The interior lining consists of our metallic dot pattern designed to retain heat, while the breathable materials dissipate moisture
- ALPINE STYLE & PERFORMANCE: A lightweight, mid height, waterproof boot, made with leather, webbing, and mesh upper. It’s a critically insulated boot for those cold weather days
- ALL-DAY SUPPORT: Incorporates our TechLite lightweight midsole that provides lasting comfort, superior cushioning and high energy return, mile after mile
- ALL TERRAIN READY: Our signature Omni-Grip outsole is an indoor safe, non-marking rubber that provides sure-footed traction from trailside to mountain face
- Our White Ledge Men's Hiking Boots have premium full-grain waterproof leather uppers, seam-sealed waterproof construction, and rustproof speed lace hardware with hooks at top for secure lacing.
- LOOK NO FURTHER for trail-ready performance and style. Our selection of men’s hiking boots, waterproof hiking boots, casual boots, and casual shoes is designed to fit in with your outdoor-ready ensembles.
- TIMBERLAND HAS YOU COVERED whether you're looking for men's boots, women's boots, or kids boots. For the best in hiking boots, rain boots, work boots, casual shoes & boots & more, choose Timberland.
- WHAT YOU NEED IN THE OUTDOORS: Timberland has the gear you need for all your outdoor adventures, including jackets and coats for outdoor activities, backpacks and luggage & outdoor accessories.
- Covered by the Timberland Limited Warranty. For complete terms, limitations, and instructions on how to make a warranty claim, please visit the Timberland website.
- UPDATED CLASSIC. The updated Men's Chilkat V Lace Waterproof Boots are light and comfortable, and this new edition of our classic winter workhorse will make you cheer when the next cold front rolls in.
- WATERPROOF DURABILITY. Made with a waterproof suede upper, these highly durable outdoor boots keep you dry with seam-sealed construction allowing you to hike, splash, and explore comfortably in even the nastiest conditions.
- RECYCLED INSULATION. Take on the cold with eco-conscious, superior warmth. Featuring 200 grams of our patented, recycled Heatseeker ECO insulation, you'll easily stay exceptionally warm — even in wet weather.
- OUTDOOR VERSATILITY. Never Stop Exploring with thoughtful features that help you go further — compression-molded EVA midsoles offer long-lasting cushioning, while a heel clip for snowshoes and D-ring gaiter attachment allow for easily changing conditions.
- SURFACE CONTROL OUTSOLE. Explore confidently in a high-traction outsole that's optimized for winter conditions and gives surefooted confidence on any terrain. From peak to peak, you'll love staying grounded and maintaining traction on winter expeditions.
- OMNI-HEAT: Our patented Heat Reflective lining is the ultimate heat management system for outdoor performance. The metallic dot patterned inner lining is designed to retain heat, while the breathable lining dissipates moisture.
- ADVANCED TECHNOLOGY: Our Omni-TECH system features a waterproof breathable seam-sealed membrane bootie construction.
- URBAN STYLE MEETS FUNCTIONAL BOOT: The perfect combination of high-top style and function, with full laced up ankle support, this boot makes for great wearability wherever you go this winter.
- TRACTION AND COMFORT: Featuring our indoor-friendly Omni-GRIP, a non-marking outsole, this boot provides sure-footed traction in the wild. The lightweight TECHLITE midsole makes every trek worthwhile with superior cushioning and long-lasting comfort.
- TEMPERATURE RATINGS: Rated -25F/-32C for cold weather days.
HOW WE CHOSE OUR RATINGS
We want our clothing reviews to be helpful to you, so we strive for providing information that is helpful and honest. To help understand how the product actually works for real people that have tried it, we scour online reviews and testimonials in-depth.
The overall reputation of the shoe brand in question is also a factor in our ratings. However, we also realize that sometimes the best “name brands” have slips or downgrades in quality.
In effect, they are skating off of their past accomplishments and not currently producing the best shoes like they used to. This is unfortunately very common, especially in the footwear industry.
WHAT KIND OF WINTER BOOTS FOR MEN DO YOU NEED?

With many different types of men’s boots to choose from, you should get clear before you start shopping on what exactly you need. Or, if you are shopping for a man in your life, what he might need.
“Winter” can mean many different things depending on what location you are living in. A winter in Michigan or Wisconsin is likely to involve a lot of deep, wet snow if it’s a stormy winter. At its worst, you may be dealing with a lot of brown, mushy slush that is cold and wet and seems to get into every crack and crevice of your shoes.
If you are in a warmer climate, however, such as Los Angeles or Texas, your main winter concern could be rain and lots of it, depending on whether El Niño or La Niña is in vogue this year in terms of weather patterns.
WINTER HIKING BOOTS AND CRAMPONS
Are you going to be hiking in the winter? Or perhaps you are planning a trip to Mount Everest? Then you will want to have very tough, insulated boots that have a good grip on the soles.
(Of course, if you are seriously going to try to climb Mount Everest or any other mountain with snow), you will probably need more than just good winter boots – you will also need crampons.
TOP 7 BEST WINTER BOOTS FOR ME
Without further ado, here are some really terrific men’s winter boots that will keep you warm as well as upright on ice and snow. Ratings are based on five stars being the best.
KAMIK MEN’S NATIONPLUS BOOT
- Cold-weather boot with leather-and-rubber upper featuring 200B Thinsulate insulation and moisture-wicking lining
- Rustproof speed-lacing system
At 5 stars, these cold-weather boots are a steal, as they are sold on Amazon. Made from leather, these rubber-soled shoes are temperature rated to -40 degrees Fahrenheit. The boot’s shaft is approximately 10 inches from the arch, giving you a lot of warmth for your calves.
The platform is approximately three-quarters of an inch.The leather-and-rubber upper features 200B Thinsulate insulation and a lining that wicks moisture away. The winter boot also offers a “speed-lacing system” that is rustproof. Available colors are dark brown, black, and black/charcoal.
Reviewers say they like the boot for its good tread, though some complain the shoes do not keep the feet warm enough due to “flimsy thin soles.” However, others call them an “everyday practical boot that is warm, durable and practical for the north country winters.”
KEEN MEN’S SNOW BOOTS SNEAKERS
- CONSCIOUSLY CREATED: environmentally preferred leather; hides sourced from leather working group certified tanneries that use fewer chemicals; environmentally preferred durable water repellent dwr helps prevent leather from drying out
- MATERIAL & CLOSURE: water resistant premium leather for durable protection against the elements; quick dry lining for active use; lace lock bungee capture system provides a secure fit while offering a quick and easy way to get footwear on and off
- GRIP & PROTECTION: keen.all-terrain rubber is created for muddy and rocky surfaces; 5mm multi directional lugs offer superior grip on slippery terrain; non marking rubber outsoles leave no imprint when walking indoors; toe bumper for added durability
- SUPPORT & COMFORT: external stability shank helps with mobility and torsion control on uneven surfaces; heel capture system for added stability; dual density footbed for long lasting comfort; durable underfoot cushioning system for long lasting use
- FIT & CARE: this style is running ½ size big; KEEN suggests ordering a ½ size smaller than your usual size; gently brush leather with a soft bristle brush or hand towel to remove loose dirt and debris; tough stains may require a leather cleaner
These are the cheapest winter boot option for men we have here. And with a 4.5-star rating, these “boot sneakers” are a great deal. You won’t look like you are wearing heavy boots, and you won’t feel like you are wearing boots, but you’ll be wearing winter boots.
These rubber-soled “fashion sneakers” are lined with fake fur that is soft and toasty warm in cold wintry weather. You can get a high-quality PU leather upper, designed to keep wet snow from penetrating the shoes. Or, another option is a softer suede that you could even wear out to the club.
The sturdy rubber outsole is designed to be “antiskid.” It is designed to be flexible while keeping you from slipping on icy, wet surfaces.
The best part about these sneaker boots is that they are very lightweight, especially compared to many winter boots or shoes. Both suede and PU leather styles come in black and dark blue.
TIMBERLAND MEN’S WHITE LEDGE MID WATERPROOF ANKLE BOOT
- Our White Ledge Men's Hiking Boots have premium full-grain waterproof leather uppers, seam-sealed waterproof construction, and rustproof speed lace hardware with hooks at top for secure lacing.
- LOOK NO FURTHER for trail-ready performance and style. Our selection of men’s hiking boots, waterproof hiking boots, casual boots, and casual shoes is designed to fit in with your outdoor-ready ensembles.
- TIMBERLAND HAS YOU COVERED whether you're looking for men's boots, women's boots, or kids boots. For the best in hiking boots, rain boots, work boots, casual shoes & boots & more, choose Timberland.
- WHAT YOU NEED IN THE OUTDOORS: Timberland has the gear you need for all your outdoor adventures, including jackets and coats for outdoor activities, backpacks and luggage & outdoor accessories.
- Covered by the Timberland Limited Warranty. For complete terms, limitations, and instructions on how to make a warranty claim, please visit the Timberland website.
This is the #1 Best Seller in Men’s Hiking Boots on Amazon, and for good reason. These imported waterproof ankle boots are full-grain leather with a rubber sole. The platform is about a half an inch with a 4.75-inch shaft.
The premium quality leather has been waterproofed and the seams sealed to keep the foot dry in wet sloppy snow and sleet. The rustproof speed lacing system has hooks at the top for easy and secure lacing. These waterproofed winter weather boots can be used for light hiking and casual wear.
They are not made for heavy duty hiking or climbing in part because they do not have the strong ankle support. Some reviewers recommend putting a coating of Mink Oil on the boots to improve the waterproofing on the leather.
You can also put in a “Dr. Scholl’s” shoe insert for added cushioning. Reviewers praise these boots for being durable and having a large, comfortable toe box. They break in fairly quickly. These Timberland boots come in black, dark brown, wheat, and regular brown.
MERRELL MEN’S MOAB POLAR WATERPROOF WINTER BOOT
- Winter-ready hiker in high silhouette featuring protective shell bootie and color-blocked cage overlays
- M-Select DRY treatment
- Molded EVA midsole and footbed
- M-Select ICE GRIP outsole
Merrell is known for offering quality outdoor shoes at prices that aren’t super crazy expensive. This waterproof winter boot is not their best shoe available, at only 4 stars. But, it still makes our list for being a strong showing at a decent price range.
This imported winter boot is offered in two colors, black and espresso, and the materials are a mix of leather, fabric, and synthetic.The synthetic sole supports a heal that measures approximately one and a quarter inch. The midsole and footbed are made from molded EVA. The outsole has what Merrell calls an “M-Select ICE GRIP.”
The shaft is six and a half inches high. This “high silhouette” boot also offers a “protective shell bootie” and “color-blocked cage overlays.”To keep the boot free from wet slush and snow, it is treated with an “M-Select DRY treatment.”
Overall, the reviews of these winter boots were very positive. For example, one reviewer wrote: “These boots are excellent. They are very comfortable and very durable. They grip the ground (in the snow) very well. I live in an area where it snows fairly often, and it just stacks up, and these boots kept my feet dry walking through the deep snow.”
However, one of the most common complaints was that these Merrell boots were just too narrow. If you have wide feet, you will need to pass. This is why we gave these boots 4 stars instead of 4.5 or 5.
MUCK BOOT MEN’S ARCTIC PRO HUNTING BOOT
- 8 mm neoprene provides comfort and flexibility, along with excellent waterproofing, shock absorption and heat retention properties; adjusts to your foot shape to resist blisters and chafing
- Muck's warmest boot; fleece lining is soft, durable and provides exceptional warmth in extreme cold; 2 mm thermal foam under the footbed for extra warmth; comfort rated from -60 °F to 30 °F (-50 °C to -1 °C)
- Stretch-fit Comfort Topline snugs calf to seal in warmth while keeping cold and debris out; double reinforcement in the instep, heel and Achilles area where you need it most
- Lightweight EVA midsole for additional cushioning; super aggressive Bob-Tracker outsole is rugged and durable
- High-grade rubber provides extra toughness and makes for a 100% waterproof hunting boot; Shaft Circumference is 17 inches; rear pull loops for easy on/off
These are some serious boots for some serious winter cold conditions. They aren’t the cheapest, but they may just be what you need for arctic conditions.With a 14-inch shaft and a 15.5-inch opening, these high boots come in black and dark shadow styles.
Materials include flexible neoprene that helps with retaining warmth as well as shock absorption and chafe reduction. Special materials featured are high grade extended rubber with “Spandura” that makes the shoes more durable while remaining flexible. The entire shoe is 100 percent waterproof.
The shoes are lined with fleece and they are comfort rated from -60 to 30 degrees Fahrenheit (-50 to -1 degree Celsius).The manufacturer boasts that most advanced traction on wet ice with their “Vibram Arctic Grip outsole pods.”
COLUMBIA MEN’S BUGABOOT PLUS III OMNI COLD-WEATHER BOOT
- Ankle-high cold-weather boot with waterproof seam-sealed construction featuring Omni-Heat reflective lining with 200g insulation
- Techlite lightweight midsole for long lasting comfort, superior cushioning, and high energy return
- Omni-Grip non-marking traction rubber outsole
- upper material is combination of leather, nylon, webbing and metal hardware
You can find these 4.5-star men’s winter boots for really crazy prices. The leather and textile upper come in three unique color combinations: mud and squash, charcoal and bright red, or black and charcoal.
These boots have rubber soles and shafts that are seven inches from the arch, which provides tons of ankle coverage and warmth. The “Omni-Grip” rubber outsole offers non-marking traction. The “Techlite” midsole is lightweight to keep it comfortable with strong cushioning and “high energy return.”
The upper is an attractive construction of nylon, leather, strong synthetic webbing, and sturdy metal hardware.
The waterproofed boots are seam-sealed. The “Omni-Heat” reflective lining provides 200g of insulation.These get some great reviews, like the following:
“Great boots! I’m a USPS letter carrier who does most to all of my routes on foot. Just bought these yesterday and they’re great. Been walking in snow all day today and my feet were dry and comfortable. There’s no breaking in period, they’re already comfy and my feet are picky too so that’s nice. Great tread too. Walked on lots of ice today too and they kept me as stable as any boot I’ve owned.”
However, some people have complained that the shoes are not as sturdy as they used to be, and the quality may have declined slightly in recent years.
KAMIK MEN’S GREENBAY 4 COLD-WEATHER BOOT
- Cold-weather boot with waterproof upper featuring removable 8mm thermal-guard liner and hook-and-loop strap
- Drawstring at top line
Here is another great entry from Kamik, in a completely different style from their other entry in our list. This 600 denier nylon shoe ranges on Amazon. These boots, which made in this “best winter boots for men” list, are made in the USA with imported materials.
The synthetic RubberHe sole provides good traction in snow and on ice. The generous boot opening is about 20 inches around, and a long, warm shaft is a total of 13 inches high. The waterproof upper is very versatile, with a heat-retaining 8mm thermal-guard liner that you can remove on warmer days. There is also a hook-and-loop strap closure and a drawstring at the top line.
Here is one happy reviewer: “I recently rented a snowmobile at Government Camp Mt Hood and were given these boots with the rental. I LOVED them SOOO much I bought a pair to use on another recent snow trip to Bear Valley California! They are SOOO comfortable and keep my feet ‘toasty’ warm in the deep snow all day.
BUYER’S GUIDE – BEST WINTER BOOTS FOR MEN
As always, personal taste and preference place a huge role when it comes to fashion items such as shoes.
We realize that shoes are more than just “fashion,” as they need to be protective and sturdy. But ultimately, your personal tastes will decide whether a shoe or boot is right for you.
And sometimes, the only way to do that is by buying a pair of best winter boots for men and wearing it for a while.
This is especially true when it comes to boots, which need a breaking in period before you achieve comfort.
The main thing to remember when buying any sort of hiking boot or winter shoe that requires thick sock is to size up. You should get at least a half size up from your normal shoe size, or even a full size up.
Once in a while, a boot might run small, but nine times out of ten you need a bigger shoe for thick socks and possibly swollen feet.