eoGEAR Medium Century Bag DESIGNBicycle top tube bag for a smart phone, small camera, repair kit, battery pack or nutrition. It sits right behind the stem and attaches with three hook & loop strapsno elastic that will allow the bag to flop around. MAIN COMPARTMENTHolds many smart phones, i.e. iPhone 5, 6 or 7 and many Android models, see product description below. Is large enough for a tool, tube or two, tire levers & a CO2 injector. Sized to hold our exclusive fuel container (# 2320)  no more messy food in your jersey pockets. This zipper can be operated with one hand. OUTSIDE POCKETSThe outside zippered pocket is a good spot to store cash and I.D. It is specifically designed to hold the optional LM Watertight Wallet (# 4915). The outside mesh pocket has a quick-access Velcro closure for small accessories. The hook side of the Velcro faces inward, so it doest snag your shorts or bibs. CONSTRUCTIONThe exterior of the bag is constructed of rugged 400-denier or 420-denier Nylon fabrics. The main compartment has a heavy-duty #8 water-repellent zipper (opens from the front to facilitate battery pack cords). Reflective strips on the sides. A dense 3mm foam padding is sewn into the bottom to protect against vibrations of road or trail. Designed & Crafted in the USA. On the sides of the bag are reflective strips for safety at night.