Our most-advanced XC4® yet! Exclusive breathable, waterproof, construction and materials. Axis Chassis™ System offers optimal support and stability. Smart Degree Technology® temperature-regulating interior polymers activate at both hot and cold temperatures, so your feet feel just-right all day. XC Foam® delivers superior cushioning, lightweight comfort. Dual-width footbed can be easily removed to accommodate your own orthotic or wide foot. Removable multi-density footbed with memory-foam cushioning and arch support.
