10 Best Thermal Pants of December 2025

• Traditional full length thermal pant made from U.S. sourced cotton and recycled polyester

Fruit of the Loom

• 100% cotton
• imported
• snap closure
• machine wash
• 6.5 oz heavyweight waffle knit fabric
• rated for very cold weather and low to medium activity
• Leg style: Pencil; Fit type: Skinny

Indera

• 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

Carhartt

• Tough, lightweight HeatGear fabric, with all the performance benefits of UA Compression
• Stretch-mesh gusset & inseam panels deliver strategic ventilation
• Updated ergonomic design keeps seams off high abrasion areas & increases durability
• 4-way stretch construction moves better in every direction
• Material wicks sweat & dries really fast

Under Armour

• 5 oz, Waffle Knit Traditional Long Johns offer familiar, cotton rich comfort
• Rib cuffs for added protection from cold, tagless label
• Waffle pockets trap and retain body heat
• Available in sizes up to 4X
• Rated for cold to very cold weather and medium activity

Indera

• 【Ultra Soft & Warm】 Thermal tech fleece fabric of the baselayer caresses the skin so naturally providing maximum comfort and softness.
• 【Stretchy & Durable】 Spandex added for extra stretch and shape retention; close-fitting style does better in retaining body heat to keep you warm.
• 【Versatile Performance】 Thermal leggings with ultra soft hand feel and heat-retention is a perfect option during various indoor activities, outdoor excursion and recreational activities.
• 【Choose Fly or Non Fly】 Functional Fly - Considerate design on the thermal bottom with fly opening
• 【Easy Care】 Machine Washable

DEVOPS

• *Alert: True to size : Please follow the size examples below*(EX: Size "Large recommended" - Size for 6" 215 lbs.) (EX: Size "Medium" 5'9"165 lbs.)
• Winter gear : Thermal Pants designed for warmth (Fleece lining).
• Order usual size ( Extreme Compression Fit) if you prefer a looser fit please choose 1 size up
• Mix of Polyester & Spandex. Excellent elasticity with enhanced range of motion.
• Perfect option during various indoor activities and outdoor excursion.
• Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation.
• Non abrasion fabric material with excellent elasticity and durability
• Washing Tip : Wash separately before wearing.

ATHLIO

• Classic 2-ply cotton-rich thermal underwear
• Choose these base-layer bottoms for everyday warmth during low activity levels

Duofold

• 5 oz, Waffle Knit Traditional Long Johns offer familiar, cotton rich comfort
• Rib cuffs for added protection from cold, tagless label
• Available in sizes up to 6X and 4X-Tall
• Country Of Origin: Mexico
• Traps & Retains Body Heat
• Waffle Knit
• Cotton Rich For Comfort
• Rated for Cold Weather Medium Activity

Indera

• **Order usual size for (Extreme Compression Fit) If you prefer a looser fit please Choose +1 size up
• (Ex: Size "X-Small" 5'6" ft 105 lbs. - Pictured Model's Measurements)
• Winter gear : Thermal Pants designed for warmth (Fleece lining).
• Workout leggings are made out of Polyester & Spandex. Versatile Baselayer for a variety of sports such as running, yoga, baseball, basketball, soccer, football, bjj, at the gym training and most active workouts.
• Non abrasion Protective clothing with excellent elasticity and durability that safeguards your skin from harmful UV rays by more than 99% (UPF 50+)
• Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation.

TSLA