A binding that exudes fun and functionality, the K2 Sonic is the preferred tool for the rider looking to polish their skills. With our lightweight, yet durable, ProFusion™ Chassis, our cushy P.I. Ankle Strap, and 100% Tool-less adjustability, the Sonic was engineered to be the ultimate tool for on-hill progression.Specifications:- Bindings Category: All Mountain- Chassis Material: Pc Flex- Chassis: Profusion™,Multi-Compatible Disc- Footbed: 3° Canting,Seamless Eva Footbed- Adjustments: 100% Toolless Adjustment,Adjustable Power Ramp,On-Board Toe Adjust- Highback & Features: Polycarbonate,Forward Lean Adjustment,Airlock Forward Lean Adjustment,Tool-Less Forward Lean Adj- Ankle Strap: 3d Ankle Strap,Eva Padded Strap,Cam-Lock™ Centering- Toe Strap: Perfect Fit™,Cam-Lock™ Centering- Ratchets: Mega Pc Lever,Ez Feed Funnel- Product Type: Snowboard Bindings- Binding Flex: 3/10Technology:Profusion™ Chassis:- Simple, Tough, And Lightweight, The Profusion™ Chassis Is The Go-To Standard In The K2 Binding Collection. On-Board Tool-Less Power Ramp And Toe Strap Adjustments Are Paired With Multiple Ankle-Strap Mount Points To Help Dial In Perfect Fit And Ideal Power Transfer.Pc Flex Chassis Material:- A Polycarbonate Chassis Allows For True Board-Flex And Optimal Board-Feel.Polycarbonate Highback:- A Polycarbonate Highback Allows For A More Forgiving Highback, Designed For Those Looking To Progress Their Skills Or Get That Extra Tweak.Pi Ankle Strap:- A Lightweight And Durable Injection Molded Ankle Strap Designed Primarily With Comfort In Mind.Perfect Fit™ Toe Strap:- Hinged Design Fits Any Boot Toe Shape, Holds Well, And Sits In A Low-Profile Configuration.3° Canted Footbed:- Canted 3° To Match Your Natural Leg Position During Riding. More Support To The Outside Of The Foot Provides Improved Control While Reducing Fatigue.Gap Eraser™ Forward Lean:- Gap Eraser™ Technology Completely Eliminates All Gapping Between The Boot, Highback, And Heel Cup, Creating An Even Stronger Bond Between You And Your Snowboard. Better Contact Means Better Response.100% Tool-Less Adjustments:- Once Mounted To Your Board, All Strap And Highback Adjustments Can Be Done On-The-Fly Without The Need For Screwdrivers Or Other Tools.Mega Pc Lever Ratchet:- Lightweight And Dependable With A No-Frills Attitude. Our 4-Click Pc Ratchet Features A High-End Spring Inside For A Secure Hold.4’’ Multi-Compatible Mount Disc:- Compatible With Our Profusion™ Chassis, The 4’’ Multi-Mount Disc Focuses On Power Transfer And Lets You Mount Your Snowboard Binding To 4-Hole, 3-Hole, And Channel Mounts.