Bike Pack Portable Waterproof Backpack With Insulated Layer 3L Water Bag Outdoor Sport Climbing Hiking Pouch Hydration Backpack Feature: [ LARGE STORAGE ] The rave backpack has 4 storage compartments plus 1 anti theft pocket for separation of essentials.The extra insulation material in the bladder storage, which really makes a difference keeping the water from heating up against your back.To keep the pack even more secure, there's additional a hidden compartment behind the waist. [ COMFORTABLE & BREATHABLE & ADJUSTABLE ] Waterproof material.With ultra-elastic 3D breathable padded back & adjustable chest, waist straps.Ergonomically fits for your shoudler, chest, waist.The soft air mesh back speeds up the air flow and keeps your back cool.Perfect fits all sizes. [ BPA FREE 3L HYDRATION BLADDER ] Included 3 liters food grade hydration bladder so plenty of room for carrying water.Simply bite the mouthpiece to suck water, doesn't leak, water flows fast and never drips on when locked.Large 3-inch opening for add ice and easy cleaning. [ INSULATED LAYER ] A separate inuslated bladder compartment that is to improve the insulation effect and realize the separation of dry and wet.Insulated pocket and tube maintains the temperature for up to 5 hours in your hydration bag. [ LIGHTWEIGHT DAYPACK ] This cool hydration backpack built with fun & function, designed to keep you hydrated and stylish for occasion like music festival, running, cycling, rave or edm and any other activities.A decent holiday gift for families and friends who love outdoor sports.

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