My OLD SHOES: Ive been wearing out a pair of zx2s for several years. Very very comfortable shoes. It was a very windy 5 hour ride home from camping. Extremely smooth pulley system! I love how rustic it truly is. Great product, great value, arrived quickly, well packed thank you. They will thank you! After using it for less than 2 weeks the wires in side started to break and the ear piece was not use able anymore. You have 2 clamps that are the same style that youd see on a bike tire, or seat post clamp. So I bought these from Amazon instead.