Sports Backpack for Running, Cycling, and Motorcycling Versatile Use - This backpack is ideal for cycling and motorcycling, as well as trips and family picnics. It's also suitable for various outdoor activities. Compact Design - Lightweight and compact, this backpack allows you to carry essentials like a wallet, phone, payment card, keys, and a water bottle during trips or rides. Comfortable to Wear - Features soft cushions and breathable material on the back, along with an adjustable chest strap for a personalized fit. The design promotes ventilation and maintains an aerodynamic silhouette. Hydration Included - Comes with a 2-liter water bladder and tube, perfect for staying hydrated during long runs or activities. A full bladder lasts about 4 hours. Specifications: - Material: Cover: polyester; Filling: EPE foam; Elements: nylon + PP; Water bladder: EVA + PP + silica gel + PVC + PE + PP + rubber - Lightweight and breathable - Adjustable chest strap - Shoulder strap adjustment: 39 - 72 cm - Dimensions: 43 x 23 x 1.5 cm - Weight: 0.17 kg - Package weight: 0.181 kg Included: - Backpack with water bladder - Waterskin - Tube This bicycle backpack is a practical accessory for running, cycling, motorcycling, and other outdoor activities. It's lightweight and features a special hook for hanging.