Outer Shell

Ski boots are the most important part of your gear. The Zay polyurethane outer shell is engineered for and remains pliable in extreme cold environments. Our ski boots are 50% less sensitive to cold – they won’t stiffen up when temperatures drop like traditional boots. 

Our shell stores energy and then releases it, much like a bungee cord, rubber band or a spring. This phenomenon is called Elastic Potential Energy (EPE) and adds “rebound” to every turn, for a powerful response and faster edge-to-edge movement.