10 bestLong Underwear For Cold Weatherof December 2025
112M consumers helped this year.
1

Merino.tech Merino Wool Base Layer Men Set - Merino Thermal Underwear Mens Top and Bottom Lightweight, Midweight, Heavyweight (X-Large, 250 Charcoal Grey)
Merino.tech

9.8
2

Canterbury Mens Thermoreg Baselayer - Navy - XL
Canterbury

9.6
3

Helly Hansen Men's Lifa Merino Midweight Crew Shirt, New Item, XXL UK
Helly Hansen

9.4
44% off
4

Helly Hansen HH Lifa Stripe Crew Long Sleeve T-Shirt Mens White L
Helly Hansen

9.1
10% off
5

Helly Hansen Mens Lifa Merino Midweight Pant, Black, M EU
Helly Hansen

8.9
Other
6

Helly Hansen Mens HH Tech 1/2 Zip Base Layer, M, Navy
Helly Hansen

8.6
23% off
7

Helly Hansen Mens Lifa HH Base Layer Pant, L, Black
Helly Hansen

8.3
8

Icebreaker 100% Merino Wool Baselayer, Men's Leggings, Everyday Gym Leggings, For Workouts and Sports - Black / Monsoon, XL.
Icebreaker

8.0
9

Carhartt Men's Base Force Midweight Classic Crew Layer Top, Shadow, S
Carhartt

7.8
10

Smartwool Women's Merino 250 Baselayer Bottom Boxed Thermal Tops - Black, Large
Smartwool

7.5
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