This is a clever 2-in-1 bike bag. You can strap it to your bike's top tube (frame bag) OR to your handlebars (handlebar bag), depending on what you prefer. The mounting straps are adjustable to fit tubes from 30-55mm.\n\nIt's built like a tough little tank. The outer shell is rigid EVA material with a carbon fiber look, so it holds its shape and protects your stuff from bumps. It's also fully waterproof – the seams are sealed and the zipper has a cover, so rain or puddles won't get in.\n\nThe front has a clear TPU window, so you can slip your phone in (fits phones with screens up to 6.9 inches, like most iPhones and Galaxies) and still use the touchscreen and see your map. There's shock-absorbing padding inside for your phone too.\n\nIt's got a decent main compartment for keys, wallet, snacks, or tools, plus a quick-release buckle so you can pop the whole bag off your bike in one second to take with you.\n\n---\nUse: Bike frame bag OR handlebar bag (2-in-1).\nMaterial: Hard EVA shell, TPU window, waterproof PU.\nPhone Compatibility: Touchscreen phones with screens below 6.9\\\.\nFeatures: Fully waterproof, shock-absorbent, quick-release mount, adjustable straps.\nSize: Approx. 20.5 x 10.5 x 11.1 cm.