Feetures! Elite Ultra Light No Show Tab Sock - Reflector/Aqua Medium Color: Reflector Aqua Size: M Model: E5504181 The Power Arch (Patent Pending) is anatomically constructed to provide targeted support where it's Anatomical right and left foot design enhances fit, delivering maximum protection by helping to iWick fibers wick moisture to keep feet dry and odor-free. The PerfectToe (No irritating toe seam.) Ultra thin construction takes up minimal room inside the shoe.