Troy lee designs ace thermal long sleeve jerseythe troy lee designs ace thermal long sleeve jersey has an unsurpassed fit and quality tailored just for you the light 4 way stretch polyester provides athletic feel close to body fit which keeps the body warm and ventilated designed with a full length ykk front zipper to regulate temperatures featuresperformance 100 polyester fabricfull length ykk front zipperrelaxed bottom opening compatible with the ace short and ace bib shortthree pocket rea