Constructed from Carbo Ballistic 1680 denier waterproof nylon, Fieldsheer’s Expander Tail Bag features a rigid removable internal base support and expandable side panels. The mounting system is universal with four quick release mounting straps featuring removable neoprene panels to protect the bike’s paint. Inside you’ll find the included rain cover, the quick release shoulder strap for easy transport and enough storage space to fit a full face helmet with room to spare. Visit www.wps-inc.com to see the entire Fieldsheer luggage lineup.