Earth Exquisite Suede zip closure KalsoNegative heel technology is a unique inclined sole that positions the toes 3.7 higher than the heel, helping to strengthen and tone the body Anatomic arch support maximizes the effectiveness of the heel by promoting a natural walking motion BioFoam cushioning molds to the shape of the foot, displacing and absorbing shock with each step Soft leather straps and adjustable ankle strap