Do I need to wear a down jacket at 0 degrees?

1, strong warmth: down jacket is filled with duck down or goose down, which has strong warmth and can effectively resist the cold. In the weather of 0 degrees, ordinary cotton-padded clothes can't provide enough warmth, while down jackets can provide better warmth.

2, cold weapons: down jacket can absorb the heat emitted by the human body, forming an air insulation layer. The more air the insulation layer retains, the better the insulation effect. Therefore, down jacket can effectively prevent heat loss, and it is a weapon to keep warm in 0 degree weather.