About this projectLARGE CAPACITY: This bike triangle bag can be up to 43cm in length, which means it has plenty of room to carry long pumps. About 1.5L sorting capacity, one side can put small things, such as your ID card, cash, keys. You can put your phone, bike light and repair tools on the other sideWATERPROOF DESIGN: With seamless welding technology, airtight zippers and fully waterproof materials, this down tube bag can withstand heavy rain. Forget about the weather and enjoy your rideSide Zipper: This bike bag includes durable airtight zippers on both sides. The zipper with smooth pull function consists of a zipper body and a zipper cord, you can easily take your bike accessories out of your bike bagPREMIUM MATERIAL: The bike bag is made of 600D abrasion resistant polyester for cleaning surfaces. At the same time, the density of the material is high, so it keeps the waterway and protects the bike bag from being soaked. The whole bag weighs about 160g, this bicycle bag has no burdenEASY TO INSTALL: Comes with 5 long tapes, you can mount the bike bag on the bike top tube, under the bike top tube, or on the down tube. With a piece of PP keel built in, the bike bag keeps its shape even when fully filled. Narrow shark shape that won't rub against your legs while riding. Compatible with mountain bikes, road bikes, city bikes (minimum top tube length 17.72", 45cm)