AK Binding Boost V2Velcro fastened foot strap. Directional grooving for prime board connection. Dual density molded footbed. Simplicity, comfort, and durability are the primary focuses of the Boost. With a single Velcro closure, the strap is quick and easy to tighten and loosen for various foot sizes with or without booties. The AK Boost Binding features a Dual Density footbed, which is molded with a soft layer that contours to your foot shape, while the denser