I have both the 10' and 12' Vapor (which I am pleased with) and have added the hatch kit to both. The hatch design and concept is poor at best and you need to mount your Kayaks backwards on your vehicle or are subject to the possibility that the hatch cover will be torn off in transport. I recommend adding a small hook to the surface of the hatch cover to hold the cover strap in place. They are not water proof and the rear mounting brackets do not fit well. Other than that they are just fine.