- AETREX. L2220M. MENS MEMORY POSTED NEUTRAL.The L2220" Memory Foam Series provides unsurpassed comfort and support in most footwear styles. The slow recovery IQ150 Memory foam customizes to the shape of your foot to help create a pressure free environment in your shoes. Features a soft CopperGuard" top cover made from state-of-the-art copper fibers to help prevent bacteria, fungi and odor. An advanced Lynco arch support comfortably balances your feet and provides proper body alignment.