A hard shell, weatherproof top tube mounted bag features a streamlined shape to eliminate leg contact. Large capacity zippered compartment gives cyclists quick and easy access to energy bars, smartphone, tools or any small essential gear they need.COMPARTMENT:1 mainCAPACITY:1 L / 60 ciMATERIAL:TPUBAG ATTACHMENT:Adjustable nylon strapsTOP TUBE DIAMETER:Fits 38 - 170 mmHEAD TUBE DIAMETER:Fits 38 - 52 mmSIZE:22.5 x 9.2 x 6 cm / 8.9" x 3.6" x 2.4"WEIGHT:119 g / 4.20 ozART #: TC2306BProp 65 WARNING: California purchasers click here for Prop. 65 warning