Galvin green aldrin half zip jacket with c knit technologythe premium half zip waterproof with light gore tex fabric and c knit technology providing total protection from the elements but also while retaining breathability featuresgore texreg fabric with stretchrubberized collar edgerubberized cuffs with a zipsmooth slide and glide insideextremely breathablepre shaped sleevesadjustable chest widthadjustable waist widthhalf zipspring loaded zipper pullerwater repellent zippers