• Package Include: you will receive 4 pieces of hydration backpacks and 4 pieces of 2L water bladders; Please note 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 open and fluid flows freely
• 2L Hydration Bladder: our hydration pack is equipped with detachable bladder and hose, and the 2L water bladder is easy to clean and use; The simple bite valve design allows you to take a sip of water without effort and keep your clothes from getting wet
• Compact and Lightweight: our hydration backpack pack with 2L water bladder are compact and portable, lightweight for many outdoor activities, such as road biking, running, camping, cycling, backpacking and ultralight hiking; They are humanized designs for back fit and filling water to the body timely
• Quality Hydration Pack Backpack: the inside and outside of the water backpack is made of nylon fabric, which is waterproof and designed to last for years; Breathable mesh padding accelerates air flow; Adjustable shoulder straps reduce shoulder pressure and provide lightweight comfort
• Versatility Use: the water backpack for hiking comes with a pouch on the back to store your items, such as phone, wallets and more; This water backpack for running is delicately designed for road cycling, running, hiking, camping, festival, kayaking, climbing, which can be a decent festival gift for families and friends who love outdoor sports adventure