<b>Product Description:</b><br/>Size: Backpack length 29cm, height 41cm<br/>Hydration bag: 351*175mmColor: Gray, Black Gray, Gray RedMaterial: NylonPackage Contents:1 x Outdoor Sports Backpack1 x Outdoor Sports Hydration Bag<br/>【Unique and Compact Design】Ergonomically designed for shoulders, chest and waist. Both straps are adjustable to reduce bounce. The soft air mesh back speeds up airflow to keep your back cool. The foam padded shoulder straps are very comfortable. <br/>【Practical Quick Access Pocket】The lower front pocket allows you to quickly find what you need while hiking. Suitable for smaller items that can be quickly accessed without removing the pack. Such as a knife or multi-tool, iPhone, wallet, keys and energy bars. <br/>【Professional 2L Hydration Bag】The quick release valve allows you to add water without connecting a hose. The soft suction nozzle drinking tube is comfortable to drink from and has a large opening diameter, which makes pouring water and adding ice easier, and easy to clean. <br/>【Very Durable and Lightweight】The bike backpack is specially designed for short-day hikers. It can lighten the load, walk fast, and is never a burden to you. The 1-pound weight is a perfect supplement for short trips, providing hikers with comfortable and convenient travel conditions. Suitable for short trips, camping, cycling, hiking, mountaineering, kayaking and skiing. A nice Christmas gift for family and friends who love outdoor sports. </div>