basegarment

noun
UK /ˈbeɪsˌɡɑːmənt/
US /ˈbeɪsˌɡɑːrmənt/

A basegarment is the first piece of clothing you put on your body.

She wore a soft cotton basegarment under her sweater.


OTHER MEANINGS

2. The bottom or starting layer of a layered outfit.

The basegarment keeps you warm when you ski.

3. A basic clothing item used as a starting point for a costume.

The costume designer chose a plain basegarment before adding armor.

4. A garment worn closest to the skin for comfort or protection.

Hikers pick a moisture-wicking basegarment for long trails.