Lightweight weatherproof, TREK SHELL JACKET The Trek shell jacket is a T-shirt-type raincoat that maintains elasticity through Ventwin™ coating and is waterproof, moisture-permeable, and breathable. It has a simple T-shirt shape that makes it easy to put on and take off, and it has a fastening on the back that makes it easy to wear a harness inside. Besides rainy days, it can also be used as an outdoor jacket to block chilly temperatures and wind.
