Birkenstock BirkoMotion Unisex 3/4-Length Arch Support Cork Overall arch support helps align feet properly, improve balance in impact areas and reduce foot fatigue 3/4-length design provides full support while allowing freedom of movement in the toe area Helps with: Arch Pain, Cold Feet, Heel Pain &amp; Heel Spurs, Plantar Fasciitis, Tired, Aching Feet Cork EVA footbed, leather lining