The HP half-zip pullover is a technical piece developed for high paced sailing made with recycled advanced double knit polyester that both offers protection from the sun and can be worn both as a performance top and a layering piece. S.Cafe. YKK Zipper. Half zip with YKK zipper. HH printed logo. Recycled Content. Materials Shell: 100% Recycled polyester. Care Instructions Close zippers before washing. Do not iron on print. Do not use fabric softener. Wash dark colours separately.