Start fast and finish strong on the heavy-duty shock absorption and legendary support that make the original Superfeet GREEN our most famous insole. Category: Comfort Thickness: Max FEATURES  DEEP HEEL CUP Features the widest and deepest heel cup that offers maximum support and positions the soft tissue to help with natural shock absorption. BIOMECHANICAL SHAPE   HIGH-DENSITY FOAM Closed-cell foam supports and cushions the foot for long lasting comfort. ODOR-CONTROL COATING All natural coating that eliminates odor-causing bacteria. STABILIZER CAP The base of the insole that supports the rear foot and provides structure and stability to the foam layer.