Topeak's TriBag keeps your gear handy so essentials are always within reach. This top tube pack sports a flap that folds over the opening to keep things in place while still allowing on-the-go-access. It attaches via hook-and-loop straps and you'll have plenty of room for carrying your phone, wallet, tools and energy bars. 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)