Loading, Please Wait... KidsFlex Type  Casual Shoe Selection  Children's footwear Control Option  2 mm, 3 mm Length and Standard Cover   3/4 Length Black Naugahyde  Full Length Black Starsuede Patient Selection  Young children (under age 6 or less than 60lbs) who require moderate to maximum biomechanical control. Special Features  Extra deep heel cup to accommodate the larger fat pad found on the heel of young children.