Made with 100% polyester of good quality, keeping all the hot air in while managing moisture and drying quickly. Soft elastic is used for the sleeve cuffs and bottom hem for stretchability and cyclist comfort. 3 rear pockets provide a range of storage options for long rides and reflective tail light clip increase visibility in stormy or overcast conditions. Full-length Zipper that moves smoothly that for easy venting. Tagless labels eliminate itching and irritation.