Cortech Dryver Tank Bag Waterproof, molded 600 denier Carbolex and 170 gram jersey-knit material outer shell Adjustable slider base provides a wide range of positioning options for different makes of motorcycles and riders preferences Unique, gas cap mounted ring-lock allows easy attachment and removal of the tank bag ( Ring-Lock Mount is required and is sold separately ) Easy access, top-loading waterproof zippered main compartment Rubberized handle with magnetic anchors Water-resistant nubuck interior lining Removable 600 denier Carbolex top-mount map pocket Optional 600 denier Carbolex Top-Mounted Organizer Bag (sold separately) Mounting receivers for optional GPS bracket or bag (sold separately) Small 11.5L x 10W x 6H (3.8 liter)/Carrying Capacity 5 lbs Medium 15 L x 11.5W x 7.5H (9.4 liter)/Carrying capacity 8 lbs