Boa Closure System - Delivers a micro-adjusted fit for precision and comfort on technical terrain, with a low profile, lightweight design Reactiv-Trac Frame - Integrates the classic flex of an elliptically-formed nose with the perimeter traction of a serrated t-frame X-TRAC Crampon - Aggressive crampon that can bite into ice and hard-packed snow while still being able to scoop underfoot when walking in softer conditions. Heel Lift - Eases fatigue when climbing and ensures better grip when the terrain gets steep Sport type: snowshoeing