This is a complete set of RS Taichi's Liquid Wind cooling system. I used it only once for touring in the summer. Even in the middle of summer, you can enjoy a cool and refreshing ride with the ice-cold dedicated coolant. ---Contents--- ・Vest, size M ・Water supply tube ・Water supply system kit ・Cooling bottle bag ・Dedicated cooling packs x 2 ・GATSBY LIQUIDWIND WATER x 3 This is a great value set, perfect for the coming season.