Bags Criii Nylon Sissybar Bag Med Heavy duty, weather-resistant 840 denier and 1000 denier nylon construction Universal mounting system expands from 6in. to 14in. and fits most styles of back rests Removable neoprene layer is included to protect the bike Dark colored reflective piping and Tour Masters reflective triangle provide increased nighttime visibility Hinged lid provides storage space and easy access to the main compartment and zip-pered retractable floor