If you spend time memorizing the moves on your latest project, whether it is at the crag, the boulder, or the gym, then the Zealot is your shoe. The Zealot is a high-performance synthetic velcro slipper. It is built on a super precise, cambered last to focus your foot power right to the spot where the rubber meets the rock. To maximize its precision, there is a 1.0 mm molded nylon midsole for excellent edging power and control. The Zealot is really two slippers in one: first, it is a sock-like slipper that hugs your foot with a breathable, stretch nylon mesh, then there is an external harness made from a rubberized synthetic which closes with two opposing velcro straps to securely lock your foot into the lined, synthetic Nubuck upper. The heel is made from multiple layers of Gryptonite™ rubber to create a secure, sculpted heel pocket that is vicious for heel hooking.