HIGH-QUALITY OXFORD FABRIC MATERIAL Our triangular bicycle bag is made of high-quality oxford material. It is environmentally friendly and durable. Appropriate size. Perfect for hiking and outdoor camping. ZIPPER POCKET DESIGN Zippered pocket design. More secure for inner items and convenient to open or close. Zippered opening for easy access. Durable zipper. Slim body design with large capacity to minimize wind resistance. LARGE CAPACITY The bicycle bag has enough space for long-distance travel and can hold many things such as small bike pumps, smartphones, keys, folding locks, watches, repair bags, wallets, etc. EASY INSTALLATION Equipped with 3 adjustable fastening straps. 2 on the top tube and 1 on the upright tube. The triangle bag will not move even on rough roads and is very easy to install with straps. NO SPACE OCCUPIATION The bag is mounted under the front tube of the bike. The width of the bag is only 1.6 inches. This can effectively reduce wind resistance and prevent leg impact while riding.