Lightweight 12 L Hydration Backpack: Super lightweight 8.5 oz hydration pack backpack with 2 L water bladder. Waterproof and tear-resistant fabric, PU coated nylon hydration pack bears 25 lbs
Leakproof & Anti-popping Water Bladder: Water backpack for hiking with 2 L bladder, BPA-free, food-grade PEVA material, and hose clamp. Leakproof bite value, water flows fast and never drips on when locked
Comfortable & Breathable & Adjustable: Multi-adjustable shoulder straps on hydration Pack, adjustable to 19-34 on should straps, 2.4-7.9on chest strap(up & down). Hydration packs are suitable for adults. Ergonomically fits for your shoulders, chest, and waist. Soft air mesh back speeds up the air flow and makes your back cool