Product Details Flex Medium Flex – A balance of support and comfort makes for all-terrain versatility. Baseplate AXIS-Series – The AXIS-Series is a rockered glass-filled Nylon baseplate with an asymmetrical design for optimal energy transfer. Wider than the NX2 and the FUSE for greater stability and easier access with off-axis PowerBeams and offset cable attachments for direct and balanced power transfer. Power Triangle – The Flow high-tensile steel cable creates a structural triangle between highback and baseplate for optimum energy transfer and quick, easy, and efficient turns. Highback Glass-Filled Nylon Asym AXIS-Series UniBack – Asym UniBacks are lightweight, supportive, and comfortable, with a perfect fit to follow boot contours and canted riding angles. The AXIS-series has a supportive spine with a more forgiving lateral flex. Reclining Highback – The fully reclining highback is a pivotal part of Flow's fast easy-in easy-out binding system. When open the reclining highback, a simple system actively lifts up the strap, and then tightens automatically when you close the highback. Straps Fusion PowerStrap – Fusion one-piece PowerStraps are 3D shaped for a great fit, and cover a larger area of your foot for more comfort and control. Offers the best easy-entry, set and forget performance. Buckles Locking Slap Ratchet (LSR) – These innovative LSR buckles give you the option to easily get in and out of your bindings any which way you like. Whether SpeedEntry or side entry like a dual strap, they lock down to secure your preferred footstrap tightness Additional Features Nylon Offset MultiDisk – 4HP, 3HP, and Channel compatible. Specs Ability Level:Beginner-IntermediateMore Beginner-Intermediate Flex Rating:MediumMore Medium Binding Style:Rear-Entry, Strap Binding Mount Pattern:2x4, 4x4, Burton 3D, Channel Warranty:1 Year