A knee brace with a connection mechanism that enables quick and easy secure attachment and detachment of a plastic cuff shell to struts of the brace without the need for separate fasteners and the tools required for them via the use of a novel snap connector which will connect by a simple plug in motion, and which is configured to firmly hold the connected strut and prevent it from rotating relative to the cuff shell once connected while also enabling a quick and easy tool-free disconnection of the strut for exchanging of one cuff for another. The thigh and tibia shells can be interchange without removing any screws, rivets or traditional connectors providing a modular construction with the ability to mix and match different size thigh and calf shells, making it possible for a customer to order the product in kit form, or as separate components thereby enabling easy customization.
