Built with a 98-mm forefoot last and a low-volume fit overall, the S/Max 130 responds instantly and precisely to each and every movement that you put into the boot. This way, your economy of motion is increased, allowing for a higher-performance personality and a race-like fit and behavior. There's nothing like a good-fitting boot that responds to your each and every movement. With a 130-flex rating and a ton of stiffness, you'll get that race-room performance that's good for any and all conditions and terrain.