With FMT Technology - Proven to help correct overpronation. APMA seal of acceptance The Islander Sandal features the same great FMT Technology and fit you've come to love and expect! This iconic, best-selling style now features leather trim and an updated tread pattern. Soft woven toe post and foam-lined strap ensure a comfortable fit. Podiatrist-designed, biomechanical Tri-planar Motion Control footbed with a deep heel cup helps stabilize, support and realign the feet back to their natural position. Lightweight, flexible