
Skiing is usually an activity done in cold and snow conditions, although there will be times when temperatures are warmer due to sunshine, or because you have built up heat though exertion. This article will focus on downhill skiing, which generally requires better insulation for participants, although there are other skiing disciplines such as back country skiing, which would normally see skiers wearing lighter weight shell or waterproof jackets.
A ski jacket needs to keep you warm when temperatures plummet on the slopes, but also allow some heat to escape when you warm up.