many parts missing and not received for trip easy to put together lots of space great pruduct arrived missing parts horrible to assemble poorly designed specs are way off actual usable dimensions 52x21x15 works as advertised but with annoying assembly does not fit outback 2012 factory cross bars did the trick but was tricky to put together it works well for what it is but has big limitations thule 682 sidekick rooftop cargo box review built and priced for functionality thule sidekick water tight easy way to carry extra items great product for the price surprising space and not a real drag on fuel mileage