It has sides pocket for your water hydration bottles to keep you hydrated

Carrying System: Air Cushion Belt - Lining Material: Polyester

Shoulder Strap: Detachable and adjustable

external hard drives

Item Width: 15cm Pattern Type: Solid

Backpack Swiss multi-functional 17 in waterproof solar power backpack with power bank It has sides pocket forBackpack Swiss multi functional 17 in waterproof Rugged: A large capacity backpack combines business and casual style. It has many compartments and contains multiple pockets for storing computers, iPads, and other gadgets ready to go anywhere Durable: Waterproof fabric prevents rainwater from penetrating into the bag, with good elasticity and good ventilation Sleek Design: The shoulder strap and padded back are made of highly elastic and breathable