The Thule Caprock Mounting Rack lets us carry bulky cargo, with or without crossbars. It's designed to fit common roof rack systems and truck beds while offering several mounting options with integrated T-slots. The Caprock mounts directly to Thule Evo foot packs and attaches to factory racks or third-party racks with the Thule Caprock Crossbar Kit (sold separately). With a load capacity up to 330lbs, it's a great base for attaching our rooftop tent, kayaks, or overlanding gear.