FEATURES: You can quickly and easily attach to top tube (38-52mm) and head tube (53-75mm) Designed with a padded compartment, with additional side pockets for personal items Made with 600 denier polyester on the outside and waterproof 60 denier ripstop nylon on the inside Has a capacity of 0.6 L Dimensions: 5.5" x 4" x 1.6" Weight: 59 g.