• nylon
• Made in the USA or Imported
• Water backpack:it is great running backpack for biking, running, hiking, climbing and other outdoor adventures,hydration bag
• Hydration vest:functional pcoket, the super pocket can help store water bottle, phone, keys, foods and other items,hydration bag
• Hydration bag:waterproof design makes it safe to store your belongings wherever you are,water backpack
• Outdoor hydration vest:the wide and breathable straps distribute weight , reducing strength consumption, the race vest provide you with support and min burden,hydration bag
• Hydration backpack:soft and thin mesh padding of hydration vest for optimal comfort and absorbing sweat efficiently, the flexible adjustable straps help backpack hug your body nicely,hydration bag