Loading, Please Wait... CourtFlex Type  Sport Shoe Selection  basketball/court shoes Control Option  2 mm, 3 mm, 3.5 mm Length and Standard Cover   Sulcus Length Black ETC  Full Length Black ETC Patient Selection  Specially engineered for the high performance court player Special Features  Extrinsic rearfoot flexpost (with a Lunasoft™ layer) to relieve Achilles' tendon strain, vinyl sandwich for topcover stability.