K2 SNOWBOARD BINDINGS SONIC Features:Chassis: Pro-Fusion PC, Highback: Airframe, Ankle strap: Caddi, Strap Features: Cam-Lock Centering, Toe Strap: Tool-Less universal, Ratchet: Hella RADchet, Disc: NEW! Universal disc, Footbed: Formed EVA Shockpads, Adjustable Power Ramp Strap System:Two Strap Highback:Regular Riding Style:All Mountain Freestyle