The bag frame in the front pocket is detachable and waterproof, and the hem design provides more storage space. Classic cartridge bag frame, light weight, can support 20kg. The new design adds a lid and uses zippers to close it to avoid sunlight, among other things. You can also quickly pull your phone out of the pocket on the top of your bag. Convenient, the back of the hand, shoulder, bike can be. You can bring your cell phone, computer, wallet and lunch box to work. You can also bring glasses, clothes, gloves, a water bottle, food, or other tools for the trip. Suitable for Brompton/ Birdy/Daxing pig nose seat folding bicycle, size :51x8.5x13cm Material: Polyester +PVC+ Polyester Color: black Packing contents :1 * Bicycle front bag only the above packing contents, other products are not included. Note: Light shots and different displays may cause the color of the item in the picture to be slightly different from the color of the real item. The allowable error of measurement is 1-3cm.