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”. ADDED FEATURESGood for holding PDA, mobile phone, energy bars, wallet & tools BAG ATTACHMENTNylon Straps CAPACITY0.6 L / 36.6 ci 0.72 L / 44 ci (Large), Fits up to 6” screen smartphones COMPARTMENTSOne padded main, Two side pockets HEAD TUBE DIAMETERFits ø53 - ø75 mm MATERIAL600 denier polyester Inner : waterproofed 70 denier ripstop nylon PROTECTIONPadded main compartment SIZE14 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) TOP TUBE DIAMETERFits ø38 - ø52 mm WEIGHT65 g / 2.29 oz (Medium) 80 g / 2.82 oz (Large)