Feature:1. The general long distance backpack is 15‑20L, this backpack is nearly 40L in a large capacity, which can be hung on the back and can release the pressure on the shoulders when riding, in the large capacity, you can wear it as you want.2. Two in one multifunctional bag, can be used as a shoulder bag or bicycle rack bag according to your needs, the thickened handbag is not tight, and it fits the back and can be easily carried, each size and material are ingenious.3. Polyester fabric, wear resistant, scratch resistant, strong functionality, can be carried on the back, can be hung and switched at any time.4. Rainproof, splashproof, not afraid of the weather, go ahead courageously, the weather factor is no longer a problem, polyester fabric is multi purpose in one package and can be carried with the car.5. Adjustable shoulder strap and waist belt, with quick release buckle, suitable for different body types, easy to install on the bicycle and hold it firmly with the buckle, no need to worry about falling.Specification:Item Type: Bicycle BagMaterial: PolyesterColor: Dark GrayProduct Size: Approx. 51x33x10cm/20x12.9x7.8in (Manual Measurement, Allow 1-2cm/0.3-0.7in Error)Features: Strong Functionality, Can Be Carried on the Back, Can Be Hung and Switched at Any Time, Large Capacity, Water Repellent, Polyester Fabric is Multi-purpose in One Package and Carried with the CarCapacity: 40L Package List:1 x Bicycle Bag