Men's Key West Performance Staff Shirt

3.5 oz./yd²/115 gsm (US), 5.8 oz./L yd (CA), 100% polyester ripstop Polyester mesh lining in upper back Moisture wicking performance pulls sweat away from the skin to keep you dry and comfortable Antimicrobial performance properties fight odor-causing bacteria UPF 40+ protection  Structured collar with integrated collar stays Chest pocket with pen slots and pocket flaps Full-button front Back venting for breathability; Responsible Supplier:  the company that makes this product is a member of the Fair Labor Association.