1 Pcs Lightweight Waterproof Running/cycling Backpack Durables Nylon Material With Night Reflective Large Capacity Multi-layer Storage Backpack Features: Product Name: Sports Backpack Material: Nylon Colors: Blue Quantity: 1pcs Applicable scenarios: running, cycling, traveling, outdoor sports Product size: 25cm * 8 * 41cm/9.9 * 3.2 * 16.1in Packaging size: 43 * 32 * 2cm/16.9 * 12.6 * 0.8in Product weight: 180g/0.4lb Gross weight: 180g/0.4lb Product Description: Lightweight and Breathable Design: Weighing 0.18kg, paired with a breathable backpack system, it provides long-lasting exercise without feeling stuffy or hot. Waterproof and durabled fabric: high-density nylon material, wear-resistants and scratch resistants, not afraid of rain, more reassuring for outdoor activities. Scientific layered storage: The main bag has a large capacity and multiple compartments, making it easy to store items such as water bags, phones, tablets, etc., making travel more organized. Safety details: This sports backpack comes with reflective strips and a whistle the shoulder strap to protects safe nighttime travel. It is suitable for night running, hiking, climbing, and more. Fashion Color Matching: Trendy color matching, suitable for both men and women, meeting different style needs. Includes： 1*Sports Backpack hydration backpack with water bladder perfect for outdoor adventures lightweight and comfortable backpack for hiking, camping, and cycling ideal hydration system for men and women during outdoor activities water bladder and hydration pack for keeping you hydrated on-the-go durable and functional backpack for runners, cyclists, and hikers