The Okahu is the perfect lightweight, slip on sneaker. The Okahu features Naot's removable, anatomic cork & latex footbed, which is wrapped in microfiber and molds to the shape of the foot with wear. The Koru Collection features a 1" polyurethane sole which is extremely lightweight, durable & slip resistant. This collection uses a hand-sewn Strobel construction making it strong and extremely flexible.