long underwear

US /ˌlɔŋ ˈʌndərwer/
UK /ˌlɔŋ ˈʌndərwer/
"long underwear" picture
1.

ondergoed, thermo-ondergoed

a two-piece garment, typically made of cotton or wool, worn under other clothes for warmth, covering the body from the neck to the ankles and wrists.

:
He put on his long underwear before heading out into the snow.
Hij trok zijn ondergoed aan voordat hij de sneeuw in ging.
For cold weather, long underwear is essential.
Voor koud weer is ondergoed essentieel.