Hydration Pack Lightweight Insulation Water Rucksack Backpack Bladder Bag Cycling Bicycle Bike/Hiking Climbing Pouch Feature: Quantity: 1pc Material: Nylon Color: Black Product size: 39.5×24.5×5cm/15.55×9.64×1.97in Packing size: 41x25x3cm /16.14x9.84x1.18in Net weight: 300g/0.66lb Gross weight: 300g/0.66lb Applicable scene: Home, Office, School Description: 【Lightweight】This cycling backpack body is made of fabrics and adopts bio-nic zipper. The whole backpack is on-ly 0.66lb, which is very and will not bring you any extra burden during sports. 【Convenient Water Replenishment】Water bladder can be placed in this backpack, and water pipe outlets are set on both sides of the shoulder belt, which is very convenient. The fast water system can help you replenish water at any during sports. NOTE: Water bladder is NOT included. 【Breathable & Comfortable】This backpack adopts breathable mesh design from shoulder strap to the back, which can permeability and heat dissipation. At the same, the back is ergonomically designed for maximum comfort. It fits perfectly when cycling. The adjust-able shoulder strap and back fixed vel-cro can help fix the bag, so that the bag will not sha-ke at will when cycling. 【Multipurpose】This backpack is suitable for a variety of sports scenes, such as running, cycling, hiking, cycling, ro-ck climbing, climbing and so on. Reflective strips are printed at the bottom of the backpack to ensure your night sports. VERSATILITYInternally the hydration pack contains a separate pocket for other items, such as a phone, first aid kit, and snacks.The hydration pack is your choice for cycling, camping, running,music festival, , kayaking. A decent Holiday families and who outdoor sports. Package Content: 1 x Hydration Pack