1.Material:Waterproof 600D material, which is super water-resistant and anti scratch.

2. Cycling saddle bag easily connects under bike top tube with adjustable velcro straps for custom fit

3.Size :27*20*20* 5.5cmcm , about 4L.Large interior for mobile phone, power bank, wallet, repair kit gloves, sunglasses and more.

4. Big zippered opening mouth design for easy access, with durable zipper closure, Slim body design with high capacity to minimize the wind resistance