Large space - this bike triangle upper tube bag has a large capacity and can store many small items, such as keys, headphones, mobile phones, wallets, glasses, gloves, small repair tools, energy bars, small pumps, power banks, mini flashlights, USB cables, batteries, pens, other accessories, etc., without the need for a backpack. Inside, there are small mesh and spring straps for small items such as gadgets that need a separate space. Hard shell surface - made of high-quality EVA material, saddle bag surface has texture, luster, durable, waterproof, shock-proof, not easy to deformation. You can really feel the difference between the material of the saddle bag and the general product. In addition, the smooth surface makes the bike seat bag easy to clean. Easy to ride - The style is designed as a long strip shape, the width is 6cm, and the flat shape does not affect the riding, so that the legs have more space to stretch, while meeting the storage needs, so that you have a better riding . Sealing zipper - zipper design process, so that the bicycle triangle pipe bag has better tightness and water resistance, and can better effectively prevent the entry of dust and sand in various road conditions and mountain riding. Easy to install - three mounting belts simplify the installation system, the two mounting belts on the upper side are used to fix the upper tube of the bicycle triangle, which can be freely adjusted according to the actual vehicle, and the installation belt on the back is used to fix the bicycle triangle standpipe.