The all-mountain K2 Sonic snowboard binding is the perfect place to start. The soft but supportive K2 Sonic utilizes the strength and durability of our ProFusion™ Chassis as the foundation of the binding and blends a 3º inward cant to put the user into a natural riding position. Atop the footbed, an EVA footbed is added to up the comfort factor and absorb vibrations. The result? Better balance for anticipating and riding through all terrain. Our durable AT PC Highback is responsive with just the right amount of flex for easy transitions from edge to edge. It features our Gap Eraser™ forward lean design to customize the feel and give you the most response out of any forward lean design in the industry. The padded P.I. 3D EVA ankle strap and Perfect Fit toe strap are comfortable and easy to use whether strapping in with gloves or mitts. The Power Ramp easily slides to match the shape of your boot outsole and has a quick response while turning or setting up to hit jumps and side hits. The K2 Sonic also features our Toolless design philosophy. Once the binding is mounted to the board, you can make all adjustments by hand while on the mountain to fine-tune the fit without carrying a tool or stopping at the lodge--perfect for beginners who are still dialing in the ideal binding feel. Chassis PC ProFusion™ Chassis Polycarbonate materials combine with a classic shape to deliver a lightweight and rugged framework that is the go-to standard in the K2 binding collection. Footbed 3° Canted Footbed 3º of inward canting in the footbed places the rider in a natural riding position. More support to the outside of the foot provides improved control while reducing fatigue. Highback Polycarbonate Highback A polycarbonate highback allows for a more forgiving highback, designed for those looking to progress their skills or get that extra tweak. Ankle Strap PI Ankle Strap A lightweight and durable injection molded ankle strap designed primarily with comfort in mind. 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. Toe Strap Perfect Fit™ 2.0 Toe Strap Patented toe strap technology that uses flexible hinges and lock levers to custom fit the toe strap to any snowboard boot silhouette. Ratchet 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. Adjustments 100% Toolless Adjustment Our traditional bindings are 100% tool-less adjustment. Ankle straps and highbacks can be adjusted with the human hands, and ankle straps can be moved with the pop of a lever. Keep it simple and enjoyable. Size XS S M L XL US MEN'S (2-5) (5-9) (8-12) (11-15) US WOMEN'S (3-6) (6-10) (9+) US JUNIOR (11-1)K (2-5) EURO MEN'S (33-36) (36 - 40.5) (40.5 - 44.5) (44.5 - 50) EURO WOMEN'S (33-36) (36 - 41.5) EURO JUNIOR (29 - 33.5) (34 - 38)
