Long underwear for men is essential for staying warm and comfortable during the colder months, and the best options available in 2025 offer a perfect blend of warmth, breathability, and moisture-wicking properties. From high-performance thermal layers to soft, cozy fabrics, these long underwear choices cater to various activities, whether you're hitting the slopes or lounging at home. With advancements in technology and design, today's long underwear not only provides insulation but also ensures a snug fit that moves with you, making them a must-have in any man's winter wardrobe.
Fruit of the Loom Men's Recycled Premium Waffle Thermal Underwear Long Johns Bottom (1, 2, 3, and 4 Packs), Black, Medium
- Traditional full length thermal pant made from U.S. sourced cotton and recycled polyester
- Soft mini waffle fabric long johns underwear bottoms
- Provides insulation and warmth in cold to moderately cold conditions
- Moisture wicking and quick drying fabric
- Reinforced flat seam construction
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SALE
−$10.00
Thermajohn Long Johns Thermal Underwear for Men Fleece Lined Base Layer Set for Cold Weather (Medium, Black)
- Heat Retention: When it comes to warmth and everyday wear, these long johns for men is designed specifically for you to stay protected from the cold.
- Ultra Soft Fleece: Designed with a fleece lining & quality material, these ultra soft mens thermal underwear set will keep you feeling comfortable throughout the day.
- Moisture Wicking: Stay dry with these long underwear mens as they're made from breathable fabric that effectively wicks away moisture and perspiration.
- 4 Way Stretch: Made with stretchable material, these thermals for men allows you freedom of movement with no chafing or bunching up when you move.
- Layer Up: Layering is essential to ward off the cold, so bundle up with a pair of mens thermals this winter and stay comfortable while outside or in bed as a pajama.
$29.99
SALE
−$5.53
Under Armour Men's HeatGear Armour Leggings , Black (001)/Pitch Gray, Large
- Super-light HeatGear fabric delivers superior coverage without weighing you down
- Strategic mesh panels for added ventilation where you need it
- Material wicks sweat & dries really fast
- Ergonomic design keeps seams off high abrasion areas & increases durability
- Wide, exposed elastic waistband with wordmark detail
$29.47
SALE
−$6.06
Hanes Men's X-Temp Total Support Pouch Boxer Brief, Anti-Chafing, Moisture-Wicking Underwear, Multi-Pack, Long Leg-Assorted, Large
- VALUE YOU LOVE – This sexy men’s underwear pack comes with 3 pairs of Total Support Pouch moisture-wicking underwear, in your choice of regular Boxer Briefs, Long-Leg Boxer Briefs, or Men's Trunk Underwear. Note: Colors/patterns may vary depending on availability.
- HELPS PREVENT CHAFING – Hanes Total Support Pouch has a breathable mesh liner that separates and supports for anti-chafing comfort that lasts.
- STARTS COOL. KEEPS COOL – X-Temp Technology men's boxers are designed to adapt to your temperature and activity to help you stay cool, no matter what your day brings. Targeted mesh zones make them breathable.
- ODOR CONTROL – Advanced odor protection plus moisture-wicking performance fabric help keep you dry.
- COMFORT YOU EXPECT – Comfort Flex waistband keeps your men's underwear with pouch from pinching and binding, plus they're tagless for itch-free comfort. No-ride-up legs stay in place.
$12.94
Fruit of the Loom Men's Recycled Waffle Thermal Underwear Set (Top and Bottom), Greystone Heather, Medium
- Classic thermal long sleeve crew neck top and bottom
- Made from U.S. sourced cotton and recycled polyester
- Medium Weight
- Ideal for moderately cool to cold conditions
- Easy Care
$26.99
SALE
−$4.86
Realtree Men's Heavyweight Cotton Polyester Thermal Long Johns Underwear Bottom, Ivory, Large
- Super Soft Thick Thermal Fabric: Indulge in the epitome of comfort and insulation with our state-of-the-art thermal fabric, meticulously engineered for unparalleled warmth.
- Moisture Wicking Technology: Stay dry and at ease throughout the day. Our moisture-wicking technology effortlessly lifts sweat and moisture away from your skin.
- Odor Resistant: Feel fresh and self-assured. Our thermal bottoms feature advanced odor-resistant properties, keeping unwanted odors at bay.
- Heat-Trapping Design: Confront the cold head-on as our innovative design locks in your body's heat, establishing a reliable barrier against icy temperatures. Secure fit that keeps cold air out, thanks to the ribbed cuffs that gently embrace your ankles.
- Tag-Free Label: Say goodbye to irritation and discomfort. Our tag-free label ensures you experience ultimate comfort without any annoying tags.
$14.13
SALE
−$10.50
Under Armour Men's Multi-Pack Performance Tech Long-Leg Boxer Brief, 9" Inseam, All-Day Comfort
- Lightweight, Performance Tech fabric is insanely soft and breathable
- Tagless, 4-way stretch construction moves better in every direction
- No-roll hem & Chafe-free seams
- Performance waistband with wordmark branding
- Fitted: Streamlined fit that’s not too tight or too loose
$31.50
Hanes Mens 3-pack Comfort Flex Fit Ultra Soft Stretch Brief, Available In Regular And Long Leg Boxer, Gray/Blue- Long Leg - 3 Pack, X-Large US
- America's #1 Men's Underwear Brand - Source: Circana/Consumer Tracking Service, U.S. Sales, Underwear Bottoms and Undershirts, 12 months ending November 2023
- SOFT & STRETCHY FABRIC - Our men's boxer brief underwear 3-pack is made from an ultra-soft 57% cotton/38% modal/5% spandex blend that stretches and moves with you.
- COMFORT YOU DESERVE - the Comfort Flex waistband keeps your men's underwear from pinching and binding and a lightweight, supportive pouch helps hold you in place for added room and comfort.
- TAGLESS, TOO - Because who has time for scratchy tags?
- NO RIDE-UP, NO WORRIES - A no-ride-up design means your men's boxer briefs stay put.
$17.98
Carhartt Men's Force Midweight Classic Thermal Base Layer Pant, Black, Large
- Waffle knit traps heat, fast dry wicks away sweat and fights odor
- Rugged flex technology for ease of movement
- Smooth flatlock seams and tagless label enhance comfort
- Concealed dry low-stitch waistband and contoured front for comfort
- Strategic seam placement for maximum comfort and reduced chafing
$34.99
SALE
−$12.00
WEERTI Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top Bottom Black
- LAYERING IS ESSENTIAL: The perfect cold-weather outfit is all about proper layering, so starting off thermal underwear is a must. Its provide insulation by trapping body heat and wicking away moisture, and disappear under everything from puffer jackets to cashmere sweaters.
- ALL-DAY COMFORTABLE WEARING EXPERIENCE: Long johns for men fit snug like a second skin for minimizing heat loss, lightweight but warm, gives you a sense of security throughout the winter.
- STRONG MOISTURE WICKING: Thermal long underwear mens is made of moisture wicking and breathable fabric, wick away sweat fast to keep you dry and light, easily keep away from the clammy feeling.
- PERFECT DESIGN FOR MAN：Mens long johns perfect for use underneath formal or casual attire, or they can be worn as comfy pajamas on chilly nights. Dress up this set under your clothing to keep warm and cozy in cold climates or bad weather.
- FLEXIBILITY FOR ANY MOVEMENT: Men's thermal underwear 4-way stretch delivers full mobility, its strong seams won’t tear prematurely. You’ll feel a sense of freedom in all your activities, they will keep you warm without sacrificing your range of motion or comfort.
$19.99
Last update on 2025-05-03 / Affiliate links / Images from Amazon Product Advertising API