Outdoor Research Weisse Mens Short Sleeve Shirt Features_Sustainable The full nylon walls give

The full nylon walls give insulation while the mesh window allows fantastic ventilation

TRIACT-LOCK: automatic locking system designed for frequent manipulation

Waterproof

Packed into these synthetic sleeping bags is Bluesign certified 100% recycled polyester

Under the lid is a flat mesh pocket with zipper

Outdoor Research Weisse Mens Short Sleeve Shirt Features_Sustainable The full nylon walls giveEveryday organic cotton comfort with hemp for added durability. As cool and crisp as a sour beer on a hot summer's day, the Weisse Shirt is just as ready to take its place as helmsman as it is for cocktail hour. UPF 30 means you can play in the sun as long as your heart desires, and a hemp + organic cotton blend will make your conscious feel good.