Cooling: keeps you cooler longer on indoor rides or hot outdoor rides. Cycling Vest: breathable, wicking fabric zips on for a snug fit. Zipper: full front zipper for added ventilation while you ride. Pockets: specially placed Cooling Pack pockets maximize body cooling. Cooling Packs: 4 included packs can be refrozen and used again. The veloToze Cooling Vest is designed to keep cyclists cooler longer while riding indoors or in hot outdoor weather. The Cycling Vest is made of a breathable, wicking fabric that zips on for a comfortable, snug fit. The vest has 4 specially placed pockets that hold the Cooling Packs close to the body to maximize cooling. Full front zipper can be fully unzipped while riding for maximum ventilation. The Cooling Packs can be frozen and used again and again. No matter where you ride, veloToze helps you Outsmart The Elements. Includes one Cycling Vest and 4 Cooling Packs.