FASHIONABLE , PRACTICAL & INSULATED: You will stand out by wearing REINOS hydration pack by it s fashionable look, while it s not win by just the beauty, but also the storing compartments, it has two independent compartments for your snmacks, towels, iphones, and other daily stuffs, plus an extra insulated bladder compartment. FDA APPROVED BLADDER: Bladder with 2 Liter volume, BPA FREE. Silicone bite valve, dust cover and quick release leak proof bladder connector. COMFORTABLE FIT BACKPACK: Fully adjustable shoulder and chest straps that will fit chest sizes from 26 52 to guarantee the perfect fit, keeping the pack from bouncing while running. Designed with a unique padded back section to allow airflow between your back and the pack LIGHTWEIGHT, DURABLE & WATERPROOF: Light as feather, total weight is around 13oz, you don t even know notice there is a pack on your back. extremely durable material that is water proof and designed to last for years.