Designed for committed alpine ski racers, the SPX 15 Rockerace is an elite level competition binding. The strongest retention and longest elastic travel on the market delivers instant power transfer and precise control with superior shock absorption to reduce pre-release. Its short mounting area and semi-suspended heel improve the skis flexibility for greater precision and control. Only compatible with skis equipped with R22 plate and ISO 5355 A boots. Long stretch travel: Longer stretch travel ensures more reliable retention to keep you at home when you need it. LOOK bindings offer the springiest travel (lateral and vertical) and the fastest re-centering before release, ensuring superior shock absorption to reduce unwanted pre-release. Rolling Control: LOOK binding components are designed to deliver industry-leading roll engagement strength (start-to-bind interface). This ensures minimal spin before the boot engages the binding for the most efficient power transmission on the ski. Short Mounting Zone: Shortened mounting zone provides less swing weight, improved response, and a deeper, rounder, more consistent ski flex. RACE Aluminum Toe: With 45mm of spring travel and 180° multi-directional release, the RACE metal toe delivers maximum power, precision and durability in all disciplines, from Alpine World Cup to Freestyle, Freeride and Moguls. Multi-Directional Release: LOOK is the only binding brand to develop a true mechanical upward release that works independently of the heel for the most effective 180° multi-directional release in the event of a fall. DIN/ISO: 7 - 15 Weight: 1300g 1/2 pair.