Hydration Backpack, Insulated Water Backpack- Pack for Running, Hiking, Cycling, Camping Feature: Quantity: 1pc Material: nylon Color: Dark Blue Product size: 50×24×10cm/19.68×9.45×3.94in Packing size: 52x26x3cm /20.47x10.24x1.18in Net weight: 420g/0.93lb Gross weight: 420g/0.93lb Applicable scene: Home, Office, School detaila: THERMAL INSULATION: This water backpack keeps your fluids cool with the inside thermal layer that lasts up to a duration of 4 hours. This is no doubt the choice for running, hiking, cycling, biking. HIGHLY & LIGHTWEIGHT: This hydration pack features military-grade durability which will keep the content of your backpack safe while it weights on-ly 0.93 pound, definitely won't burden you in outdoors. MULTIPLE STORAGE COMPARTMENT: The insulated backpack has multiple pockets meet the need to store your various necessities. Whether sweater, cell phone or keys as well, the differently sized pockets will suit all your storage needs perfectly as required. OUTDOOR GEAR: This lightweight hydration pack is a great companion built for multipurpose activities, with comfortable and breathable adjust-able shoulder/chest straps. 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. Package Content: 1 x Hydration Pack