10 Best Men's Long Underwear | March 2017

We spent 25 hours on research, videography, and editing, to review the top choices for this wiki. Whether you live in an area that gets its fair share of cold weather each year or are planning on going skiing or hiking outside of the warmer months, you can ensure that you still stay toasty with something from our selection of men's long underwear. Skip to the best men's long underwear on Amazon.
10 Best Men's Long Underwear | March 2017

The Hanes X-Temp feature a logoed elastic waist and a fabric mixture that adapts to your body temperature, warming you up or cooling you down when you need it. They are, however, only single layer underwear and not suited for severe cold climates.
The FiteX MAXHEAT are made from an extra slick material that reduces friction between your top layer of clothing and the long johns. They feature a four-way stretch compression that makes the wearer look slimmer, but the ankles can be too loose.
The Ekouaer EK001372 are designed to keep you warm in severe weather conditions with their microfiber fleece lined cotton, making them suited for snowboarding, skiing and hiking. Plus they're available in sizes from S to 3XL.
The CYZ Collection Long Johns feature a classic waffle knit and a perfect combination of cotton and polyester that makes them soft to the touch and durable. They are also shrinkage controlled for lasting size and shape retention.
  • flat no rub seams
  • make great pajama pants too
  • do not resist wind
Brand CYZ Collection
Model pending
Weight pending
The Duofold KMW2 are made from two-ply cotton, which is gentle on sensitive skin. The texture-rich knit traps air between two thermal layers, resulting in a chill-blocking barrier that keeps you comfortably warm without causing excessive sweat.
  • elastic ankle cuffs keep air out
  • good for use in below freezing temps
  • look a bit bulky under clothes
Brand Duofold
Model KMW2
Weight 16 ounces
The Minus33 Merino Wool Kancamagus are nice mid-weight long underwear that provide plenty of warmth without being too thick. Plus they are tagless so they won't itch, and have a stretch cuff around the ankles for added comfort.
  • fire resistant fabric
  • strong ultraviolet protection factor
  • wear quickly in the washing machine
Brand Minus33 Merino Wool
Model 706
Weight 16 ounces
The Saxx Fly Bottom come in charming winter patterns, like snowflakes and reindeer, as well as classic black and rugged camouflage. They're made from ultra soft viscose, which breathes well and has a silky texture, plus they are designed to be extra long.
  • strong stitching will last for years
  • very comfortable for everyday wear
  • sizing is a bit off
Brand Saxx
Model SXLJ30F
Weight 16 ounces
The Carhartt Base Force are made from material that wicks away sweat and weighs only 4.5 ounces. They feature smooth seams and gusseted inseams for a classic look, as well as a comfortable thick waistband that keeps the cold out.
  • comfortably fit larger sized men
  • perfect amount of stretch
  • attractive fly design in the crotch
Brand Carhartt
Model 101825
Weight 4 pounds
The Tesla Blank Thermal is a great value at under $20, and includes both bottoms and a long sleeve top. It will keep your entire body warm. The combination offers excellent insulation and a four-way thermal stretch for unrestricted movement.
  • top and bottoms are fleece lined
  • don't look bulky beneath clothes
  • get softer with each wash
Brand blank
Model pending
Weight 3.2 ounces
The Smartwool NTS Mid 250 feature a mid-rise waist to keep more of the torso warm, and flatlock seam construction designed to eliminate chafing. They are so warm that they can be worn as a single layer in cool weather or as a base layer in cold weather.
  • naturally repel odors
  • fabric dries quickly
  • fit follows contours of the body
Brand SmartWool
Model SW-NP605-$P
Weight 7.7 ounces
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Last updated: 03/25/2017 | Authorship Information