Dimensions: length 15cm * width 8.5cm * height 19cm, shoulder strap length 135cm, width 2.5cm Material: Polyester 100%, Color: black / red / khaki, Works as a front bag: the back strap can be fastened at the front and is easy to disassemble. Serves as a back pocket: Can be mounted under the seat. Weight: 210g, Applicable scenes: cycling, outdoor sports, commuting, etc. Accessories: 1*shoulder strap, 3*fixed straps, 1*rain cover Works as a front bag: the back strap can be fixed in the front, easy to disassemble. Act as a shoulder bag: can be hung, easy to carry; Serves as a back pocket: Can be mounted under the seat. Rain Cover: Pull the zip at the bottom to take it out. The rain cover and bag body are connected with elastic band and will not fall off. It can prevent heavy rain. NOTE 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products