... and feet) Velcro to fasteners and latex looped heel fasteners.Instruction manual by fitness expert Jon Hinds, CSCS, CPT, NASM, former ... and feet) Velcro to fasteners and latex looped heel fasteners.Instruction manual by fitness expert Jon Hinds, CSCS, CPT, NASM, former ... and feet) Velcro to fasteners and latex looped heel fasteners.Instruction manual by fitness expert Jon Hinds, CSCS, CPT, NASM, former ...