Raincoat

The  is perfect for long-term survival in wet conditions. The quickest killer in any survival situation is hypothermia, which causes muscle fatigue and makes regular survival tasks infinitely harder. If you find one, wear it or store it, as it will come in handy in rainy situations.

Crafting
A raincoat can be useful beyond being worn as clothing. It can be cut to pieces by combining it with a knife. Cutting up a raincoat in this fashion will yield 5 armbands of the same color as the raincoat they were cut from.