Cartel EST Restricted
but a reflex binding can also function like an EST binding on a channel board
So how do they differ anyway?
restricted products are only available in some stores, they usually have a different colour scheme and maybe some additional features, e.g upgraded ankle or toe strap on some models.
Reflex is burton's technology for non-EST boards that allows the binding to flex left and right. It's like their hinge tech that is on some of their EST bindings.
If you have a channel board you should buy and EST binding, that is the binding that is supposed to go with the board.