Light insulation seamless comfort & full-arm coverage in a long-sleeve base layer for colder conditions encountered in late fall & early spring. It’s crucial that our upper body gets an added boost against the elements during those cold fall & early spring conditions. As a solution we developed the Spring/ Fall LS Skin Layer which has taken the torch from our iconic Skinfoil base layers with a completely revamped design & all-new blend of fibers. To start we’ve lowered the weight by about 8% & used a tubular knit technology that’s free of irritating side seams. 71%PP 22%PA 4%EA 3%CF