FR PRO3 Toe NX FR Heel; Compatible with adult Alpine boots (ISO 5355 Type A) and adult Walk boots (ISO 23223 Type A); Perfect choice for freestylers tackling any terrain; Built for advanced, high performance skiers or athletes, who need maximum retention and stability at high speeds and steep terrain; Stand Height: 17 mm; DIN / Adjustment Range: 4-14; Weight: 1025 g