Abstract: A separable fastener device adapted for use in securing a removable foot support device to an internal portion of a shoe. The separable fastener device is comprised of two engaging elements. Each engaging element has a flexible planar base sheet of resilient material wherein one side of each sheet has a pressure responsive adhesive whereby one engaging element is attached to the removable foot support device and the other engaging element is attached to an internal portion of the shoe. Each of the engaging elements has a remaining side providing releasably interengageable mating surfaces in which one engaging element has a surface comprising flexible resilient hook members and the other engaging element has a surface comprising a loosely arranged mat of interlocking hair-like threads. These releasably interengageable mating surfaces engage when the foot support device is positioned in the shoe thereby preventing slippage of the foot support device.