Best Mens Long Underwear Bottoms – Top 7 Picks and Reviews 2020

We looked at every review we could find and found the best of the best using advanced technology.

Here’s a look at the best Mens Long Underwear Bottoms

Bestseller No. 1
Fruit of the Loom Men's Classic Midweight Waffle Thermal Underwear Bottoms (1-Pack), Black Soot,...
2,069 Reviews
Fruit of the Loom Men's Classic Midweight Waffle Thermal Underwear Bottoms (1-Pack), Black Soot,...
  • Pack of 1
  • Super soft, natural touch waffle fabric for moderately cold to cold weather conditions
  • Dual Defense Moisture wicking technology
  • Intellifresh odor control keeps fabric fresh
  • Elastic waistband and ribbed cuffs on ankles
SaleBestseller No. 2
Duofold Men's Mid Weight Wicking Thermal Pant, Navy, Medium
5,125 Reviews
Duofold Men's Mid Weight Wicking Thermal Pant, Navy, Medium
  • Base-layer thermal pant in two-ply cotton blend featuring flatlock seams and moisture-wicking waistband
Bestseller No. 3
Amazon Essentials Men's Lightweight Performance Base Layer Long John Pant, Black, X-Large
  • Lightweight fabric which is moisture wicking to stay dry and also heat retaining for warmth
  • Slim fit; extremely close to the body
  • As a base layer, this product is to be worn under additional articles of clothing
  • Everyday made better: we listen to customer feedback and fine-tune every detail to ensure quality, fit, and comfort
SaleBestseller No. 4
Carhartt Men's Force Midweight Classic Thermal Base Layer Pant, Black, Medium
  • Waffle knit traps heat, fast dry wicks away sweat and fights odor
  • Rugged flex technology for ease of movement
  • Smooth flat lock seams and tag less label enhance comfort
  • Concealed dry low-stitch waistband and contoured front for comfort
  • Strategic seam placement for maximum comfort and reduced chafing
SaleBestseller No. 5
Hanes Men's Waffle Knit Thermal Pant with FreshIQ, X-Temp Technology & Organic Cotton Black
  • 60% Organic Cotton/40% Polyester
  • X-TEMP technology keeps you WARM WITHOUT OVERHEATING
  • FRESH IQ for incredible ODOR PROTECTION
  • SOFT WAFFLE KNIT for SUPPORTED and LIBERATING movement with highest BREATHABILITY
  • STURDY NO RUB SEAMS to protect from CHAFING and ensure DURABILITY
SaleBestseller No. 6
LAPASA Men's Thermal Underwear Pants Fleece Lined Long Johns Leggings Base Layer Bottoms 2 Pack M10...
  • LAPASA thermal underwear pants are made with micro-fleece fabric to give the ultimate warmth during the cold weather seasons.
  • Made of polyester and spandex blend, these thermal long johns are light for layering under other clothes.
  • These thermal leggings are designed to give you flexibility by hugging your body and stretching to move with you, they will keep you warm without sacrificing your range of motion or comfort.
  • Snug fit ensures no bunching around your waistline or sleeves and reduces heat loss.
  • Matching tops are available but sold separately.
SaleBestseller No. 7
Fruit of the Loom Men's Classic Midweight Waffle Thermal Underwear Crew Top, 1 Packs, Black, Large
  • Pack of 1
  • Warm waffle thermal crew top for cold weather
  • Fits close to body as a thermal layering piece under clothes
  • Wicks away moisture to keep you comfortable and retains heat to keep you warm
  • Tag less neckline