The RC4 130 HV is designed for strong skiers looking for a stiff flex in a wider fit. The iFZ Perfomance liner maximizes power transfer and control, plus it's compatable with velcro spoiler and velcro fit pads for performance tuning. The grindable bootboard provides increased suspension when skiing aggressively. The GripWalk® sole ensures natural rolling and the best traction in a wide range of conditions, whether on exposed rock and ice or on the footpath to the ski lift.