The TriBag quickly mounts to the top tube of your bike for quick and easy access to energy bars or any small essential gear you need to keep close at hand. Two side pockets for extra capacity. Large size fits smartphones with screens up to 6". Compartments One padded main, Two side pockets Protection Padded main compartment Added Features Good for holding PDA, mobile phone, energy bars, wallet & tools Bag Attachment Nylon straps Head Tube Diameter Fits ;53 - ;75 mm Top Tube Diameter Fits ;38 - ;52 mm Capacity 0.6 L / 36.6 ci0.72 L / 44 ci (Large), Fits up to 6" screen smartphones Material 600 denier polyesterInner : waterproofed 70 denier ripstop nylon Size 14 x 10.2 x 4 cm / 5.5" x 4" x 1.6" (Medium)18 x 10.2 x 4 cm / 7.1" x 4" x 1.6" (Large) Weight 59 g / 2.08 oz (Medium)72 g / 2.54 oz (Large)