noun
winter clothes; cold-weather clothing
General term for clothing designed to protect against cold, such as coats, jackets, and thermal wear.
北海道旅行のために防寒着を買った。
I bought cold-weather clothing for my trip to Hokkaido.
冬の登山にはしっかりした防寒着が必要だ。
Proper winter clothes are necessary for winter mountain climbing.
冬服 is a more general term for winter clothing, while 防寒着 emphasizes the protective function against cold.
Compound of 防寒 (ぼうかん, 'protection against cold') and 着 (ぎ, 'clothing').