Men's Thermals
Long johns and thermal sets for cold weather.
Base layers for cold weather. A thermal works by trapping air against the skin, which only happens if it fits close — a loose thermal is just an extra layer, not a warm one.
112 products
Showing 12 of 112 products
Long JohnsAutumn
Low Rise Long Underwear Long John 30403 | dmunderwear
$19.12
Long JohnsAutumn
Low Rise Long Underwear Cupid's Arrow Long John 6040 | dmunderwear
$7.65
PantsAutumn
Low Rise Long Underwear Camouflage Long John 70410 | dmunderwear
$19.12
Long JohnsAutumn
Low Rise Long Underwear Camouflage Long John 70404 | dmunderwear
$9.56
Long JohnsAutumn
Low Rise Long Underwear Camouflage Long John 50401 | dmunderwear
$19.12
Long JohnsAutumn
Love Long John 60407 | dmunderwear
$7.65
Long JohnsModal
IGOODIS Modal Boxer U4119 | dmunderwear
$23.20
Long JohnsModal
IGOODIS Modal Boxer U4117 | dmunderwear
$23.20
Long JohnsAutumn
Feather Pattern Long John 60405 | dmunderwear
$7.65
Long JohnsModal
Cropped Long John Black U1960 | dmunderwear
$29.60
Long JohnsAutumn
Visual Arts Long John Sport Leggings 80405 | dmunderwear
$19.12
ClothingAutumn
Visual Arts Long John Sport Leggings 80404 | dmunderwear
$19.12
What to check
- Fit — close to the skin, or the insulation does not work
- Fabric — brushed insides hold more warmth
- Seams — flat seams matter more under other layers
Sizing
Sizing follows waist measurement rather than the size you usually buy — cuts are graded differently between makers, and two pairs labelled the same can sit very differently. The measurement for each style is on its product page.