Inertia Designs Expandable Rack Trunk-Black Main insulated compartment, expansion baffle on top, 2 side & 1 rear pocket Baffle and pivot top increase capacity by 45% Four point hook & loop with front quick release webbing strap attachment "D" rings for optional shoulder strap DuPont Cordura fabric 12" x 6.5" x 9-16", 689-1051 cu.in.