The SPX 11 GripWalk binding is a high-performance binding for aggressive junior and smaller adult skiers. Featuring the strongest retention and longest elastic travel on the market, the SPX delivers instant power transmission and precise control with superior shock absorption to reduce unwanted pre-release. The toe allows upward release independent of the heel for the most effective protection in the event of a fall. It's compatible with all traditional Alpine ISO 5355 A and GripWalk ISO 23223 A boot soles.