T-BAGS PET CARRIER Constructed of tough nylon with fade-resistant UV treatment. One side opens fully for easy loading. Top and two side zipper mesh panels have full weather covers. Foam-filled bottom with removable/washable lamb's wool pad. Expandable mounting system adjusts to fit all backrests 7" to 14" W x 2" thick; will also fit H-D Premium Tour-Pak Rack, Airwing Tour-Pak Rack, and the Contour Tour-Pak Rack.