Combining the 3D frame with the Original 2 fastening will enable you to tackle different terrains with total ease. Description:- DECK - Hourglass shape : allows for easier stride when walking - Design 3D : Maximum climbing and side-hill traction under the foot BINDING - Flexible binding provides a high level of foot flexibility - Lock Adjustment : This easy-to-use adjustment memorizes your shoe size for all your snowshoeing outings. - BOAA(R) Fit System : DIAL IN TO FAST, EFFORTLESS, PRECISION FIT. AGILITY AND SPEED : The BOAA(R) Fit System enables faster, more powerful directional changes through a seamless connection between equipment and body. POWER AND PRECISION : Power without compromising precision, the BOAA(R) Fit System delivers more explosive action and unparalleled accuracy. - Lateral Adjust : offer greater comfort with their side adjustment system that will accept any width of shoe to give maximum foot surround. - Tightening through a ratchet system for a secure and fast fit - Bi material comfort strap - Sound and Shock Absorbing System (SSAS) TRACTION - Design 3D : Maximum climbing and side-hill traction under the foot - Front teeth for maximum traction on steep terrain - 6 replaceable steel spikes