23Zero Walkabout Annex Tent Size:Walkabout 72 and this system will work

and this system will work with any brand of topper

Easy Setup: Gas strut-assisted arms unfold in seconds

Or hang from the hook & loop straps

360-degree views while you lay in bed

23Zero Walkabout Annex Tent Size:Walkabout 72 and this system will workThe Walkabout annex is available in two heights to accommodate various vehicle or trailer heights. The Annex is made with 210D Oxford Polyester Ripstop material that provides a great place to keep dry and protected from insects. The ladder to the Walkabout rooftop tent is enclosed inside the Annex and provides privacy when you enter or exit the tent plus, its a great place to store a porta potty! Two sizes: Small (62 inches) and Tall (78 inches)