The TriBag quickly mounts to the top tube of your bike for a quick and easy access to essentials that you need within reach. Compartments One MainTwo Side Pockets Protection Padded Main Compartment Material 600 Denier PolyesterDupont Teflon CoatingInner: Waterproofed70 Denier Ripstop Nylon Bag Attachment Nylon Straps Added Features Good for holding: PDAMobile Phone/Energy barsWallets/Tools Size (L x W x H) 14 x 4 x 10.2 cmWeight 67 g