- Fashionable with compact and delicate design.- Super lightweight 5L backpack, constructed by water-resistant nylon fabric.- Light and thin breathable comfort shoulder straps.- Come with a 2L water bladder, constructed by non-toxic PEVA, easy to use on / off valve on the bladder.- Suitable for outdoor activities like cycling, hiking, etc.- Portable, practical and easy to use. For: Fishing, Camping, Adventure, Climbing, Cycling, Traveling, Hiking Material: Nylon, PVEA Features : Ultra Light Bag Capacity: 5L Color: Black Package weight: 0.335 kg Product size (L x W x H) : 33.00 x 47.00 x 6.00 cm / 12.97 x 18.47 x 2.36 inches Package size (L x W x H) : 33.05 x 47.04 x 6.06 cm / 12.99 x 18.49 x 2.38 inches Package Contents: 1 x ROSWHEEL 5L Bike Hydration Backpack Ultralight Multi-functional Bicycle Bag with 2L Water Bladder