FESTIVAL CHOICE - Bright, eye-catching colors with a lightweight and waterproof design. This hydration backpack is specifically crafted for those who want to stand out at their next festival, rave or carnival.

KEEP COLDING - The KUYOU rave hydration pack features a thick insulated layer and a thermal compartment that keeps your liquids cold or hot for up to 4 hours. The separate inner pouch enhances insulation and ensures dry and wet separation.

BPA Free 2 Liter HYDRATION BLADDER - Includes a 2L leak-proof hydration bladder with a soft, high-flow bite valve for easy drinking. Simply pull out the mouthpiece, bite to drink, and push it back to seal. Designed to be pressure-tolerant and leak-proof, our water bladder ensures a worry-free experience during biking, running, hiking, and all your outdoor adventures!

COMFORT & RELIABILITY - Ergonomically designed with a customizable, adjustable chest strap to fit a variety of body types, ensuring no bounce or pressure during your activities. The soft, breathable mesh back accelerates airflow, keeping your back cool. The survival whistle also enhances your safety during outdoor adventures.

VERSATILITY - The hydration pack is your perfect choice for Festivals, Raves, Hiking, Biking, Climbing, Running and More. A decent Holiday Gift for families and friends who love outdoor sports.

HOW TO DRINK WATER WITH FREE FLOW: Please notic that the bite valve is the "bite and suck valve". Firstly, pull the valve in the "on" position. Then put it in the mouth, bite the groove gently with your teeth, sucking the valve at the same time. It will pop open and fluid flows freely.