Light and airy Vapor WoolTM with a cozy fitted hood for comfort, the high zipper-free neck is smooth against the skin. The summer wool is very lightweight and breathable with natural stretch. A blend of pure Montana wool and engineered fibers keeps you cool, comfortable and dry. This shirt was born for relaxed casual wear with the look and feel of pure wool. Packs small and dries quickly, a great sunshade piece for the summer! Grown in Montana, made in USA.