The 3pp Arch Lift is designed to lift and support the arch to relieve pain from Plantar Fasciitis, Flat Foot, Heel Spurs and Metatarsalgia (pain under the ball of the foot). Features Soft, foam-lined strap will not slip or roll. The Arch Lift is thin enough to be worn in shoes or at night for relief of arch pain from Plantar Fasciitis, flat foot or metatarsalgia. Sewn-in arch pad contours to the foot to support flat foot or "fallen arches". Removable metatarsal pad can be added to relieve metatarsalgia or pain in the ball of the foot. Force adjustment strap allows the wearer to control how much force is applied to relieve pain from flat foot or Plantar Fasciitis. Hand or machine wash, air dry. Latex-free. One size fits most. Fits right or left foot. Moderate/moderate + control.