Rain Poncho

A one-piece garment resembling a large cloak with a head-sized hole in the center, a poncho helps keep the wearer dry during rain storms. Ponchos are made of canvas or similar material, often treated with a waterproofing oil. A poncho can double as ground cover and can also be used as an emergency tent. Crude ponchos are sometimes woven from grass or reeds.

[Complete Ranger's Handbook]