Single-component baseplate for consistent feel and response throughout Ultra-minimized highback for the lightest weight possible Durable Smooth Glide Buckles give you precise fit control EVA baseplate cushioning absorbs shock Rotatable highbacks allow you to dial in heel-edge response and enhance tweak-ability Telescoping straps let you get your fit exactly right for greater comfort and response Progressive flex construction targets flex specifically for optimum response without grabbing True OTT highback padding eliminates pressure points