Satisfy Your Thirst For Adventure: This lightweight and comfortable backpack is a terrific companion to keep you hydrated while running, cycling, hiking or any adventure outdoors. And this pack comes with a pouch on the back to store your phone and essentials 3L Hydration Bladder: BPA-Free, taste-free, and odorless. Durable, kink-free sip tube and push-lock cushioned bite valve, gently biting the valve to open up the flow of water; Large 2 opening for ice cube and easy cleaning Trusted Quality: Pack made rugged 800D Oxford fabric and nylon lining, resistant to tears and abrasion. Durable plastic insert buckles with ultra-high hardness Lightweight & Comfortable: Weighs only 21 ounces with adjustable shoulder straps, The ergonomic design makes your back more comfortable. The soft, breathable mesh pad on the back keeps your back cool and dry