Grishko silicone arch booster LS-30Silicone Arch Booster is a sock with a stitched in pocket having a special inner pad made of medically tested silicone, also known as fake arches. The attachable arch enhancer is a sock with a stitched in ? pocket? having a special inner pad made of medically tested silicone. Create the illusion of a high instep with Grishko? s revolutionary arch enhancers! Doesn? t hinder movement; invisible under tights. Mesh fabric with silicone pad. The attachable