Bees Knees Thigh HookThe Jackson Kayak Bees Knees Thigh Hook gives all Jackson whitewater boats a more secure knee fit for a better feel. This addresses the #1 request for improvement from our customers, and follows the JK way of valuing innovation and simplicity. They require no tools to adjust, and are comfortable and lightweight. These should work with every whitewater boat we've ever made (with the exception of kids' boats).