New Other Topeak Waterproof Tri DryBag Bike Bag, Medium 7.5 x 6 x 2.25 inches

BAG ATTACHMENT - Nylon straps, 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 COMPARTMENTS - One divided / padded main, padded and waterproof main compartment keeps contents dry, safe and secure MATERIAL - 420 denier / 840 denier nylon waterproof fabric sonically welded seams CAPACITY - 0.6 L / 36.6 ci (M) ADDED FEATURES - Good for holding PDA mobile phone, energy bars, wallet and tools HEAD TUBE DIAMETER - Fits 44 - 75 mm TOP TUBE DIAMETER - Fits 38 - 52 mm