Features: Comes with a durable bag and a rain cover. Made from waterproof nylon material, abrasion and scratch resistant. Ergonomic back design, soft, comfortable and high air ventilation. Adjustable mesh shoulder straps with sponge padding for added cushioning and support. 16L large capacity, enough space for clothes, keys, snacks, wallet and cycling accessories . Exterior and waist pockets for easier storage and access. Chest and waist straps are designed to alleviate burdens and to ensure stability while cycling. Reflective design enhances visibility and safety at night. Perfect for running, cycling, mountaineering, hiking, fishing, cross-country and other outdoor activities.