What I’ve Got – Gore Tex Rain JacketI have a Gore Tex rain jacket from REI that I really like. It keeps the rain out, it durable, but also allows sweat to evaporate, which makes it comfortable. Gore Tex fabric was invented in the late 60s, and is interesting because it keeps liquid water out, but allows water vapor to pass through the membrane. It’s made of fluoropolymer and has an extra waterproof layer on top, thereby reinforcing the waterproof nature of the fabric. Source: http://gizmodo.com/the-history-of-rain-jacket-tech-from-intestines-to-gor-1684027896