Brooks Rock 'N' Roll Denver Run 1/2 Zip Top Mens Midnight Blue Galaxy Looks just like cotton, but packed full of technical qualities, including powerful moisture management to keep you cool and dry Semi-Fitted: Contours to the body Soft, four-way stretch fabric with moisture-wicking properties for comfort on the go Soft, stretch fabric is great on its own or as a layer piece. 9" front zip with super soft zipper garage allows for added ventilation and comfort.