* 270g/m2 (7.75 oz per sq yd). 50% cotton / 50% polyester-preshrunk, for cool comfort. * Air jet yarn, fell soft to wear with annoying pilling. * Heavy duty YKK metal zip, cool pouch pockets. * Double stitching for strength and durability. * Sizes:XS, S, M, L, XL. Calculate your size from the measurement chart below please.