Tide II features the same great Orthaheel Technology and fit you've come to love and expect! This iconic, best-selling style now features leather trim and an updated tread pattern. Podiatrist-designed, biomechanical orthotic footbed with deep heel cup stabilizes, supports, and realigns the feet back to their natural position. Research supports Orthaheel Technology's success in reducing over-pronation, which can help relieve associated common aches and pains, such as heel pain (plantar fasciitis), knee pain, and lower back pain.