The new Hobie hatch is designed to have a better seal. The lid also hinges open, so you never lose the lid. Designed with a cork-screw-like mechanism for closure, a simple twist of the handle opens or closes the hatch. As the screw pulls down the hatch, you get a tight seal on the o-ring. Flip the handle into the recess to lock it closed.This style hatch is now standard equipment on all Hobie Kayaks.