Add comfort to your shoe with the comfortable and supportive Merino Grey by Superfeet. Recommended for those with medium to high arches. 90% Merino wool top cover naturally helps manage moisture and foot temperature. Add cozy comfort to any sheep's wool boot or slipper, rubber rain boot, or casual footwear. High-impact, closed cell Foundation foam repels moisture while absorbing shock. Encapsulating Stabilizer System (ESS) supports the rearfoot and midfoot, allowing feet to move naturally. Moderately deep heel cup cradles the heel pad, enhancing shock absorption. Imported.