Tbags Lonestar with Roll Bag and Net TBU470 New front opening is hinged for easy access; front can be fully opened for easy packing or partially opened for access on the road Patented expandable mounting system adjusts to fit most backrests 7 to 14in. W x 2in. thick Built-in bungee-bottom external rain cover for all-weather protection External organizer for phones, pencils, maps, etc. Constructed of tough, colorfast 1680-denier ballistic nylon with fade-resistant treatment, and insulated with high-density closed-cell foam