baselayer

First clothing layer

A baselayer is clothing worn directly against the skin, designed to wick moisture and regulate body temperature during physical activity.

The term comes from outdoor and athletic wear, where layering systems build outward from base to insulating to outer shell: I always pack a merino baselayer for hiking.

Also spelled as two words.

thermal

merino

Fine-fleeced sheep breed

wicking · breathable · insulation · warmth · thermoregulation · microfiber · longjohns · synthetic · silk · compression

athletic

compression

Forcing into smaller space

fitted · seamless · second-skin · breathable · quick-dry · ergonomic · flatlock · raglan · thumbhole · half-zip

layering

foundation

Underlying support structure

system · insulating · wearable · stackable · versatile

undergarment

undershirt

Lightweight inner torso garment

  • camisoleStrappy sleeveless undergarment
  • tankLarge storage vessel
  • briefsSnug lower undergarments

boxer-briefs · trunks · bra · slip · bodysuit · tights · innerwear · underclothing · intimates

Opposites
clothing layer position

baselayerouterwear

Protective top garments

outer layer · shell · top layer · jacket · hardshell

contact with skin

baselayerouter layer

Outermost covering surface

overlayer · top coat · overwear

function in layering system

baselayerinsulation layer

Heat-trapping building component

midlayer · fleece · down jacket · puffer

Family

base, layer, bases, based, basing, basal, baseline, baseload, layers

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G