MEGAComfort Personal Anti-Fatigue Mat Shoe Inserts, Size M12, Memory Foam Insoles,MEGAComfort Personal Anti Fatigue Mat Shoe Inserts, Size M12, Memory Foam Insoles, ANTI FATIGUE SHOE INSOLES: Ergonomically designed by a Doctor, the MEGAComfort Personal Anti Fatigue Mat (PAM) uses a patented high density dual layer 100% memory foam to provide maximum comfort and shock absorption. REDUCES PAIN: These cushioned insoles are clinically proven and field tested to reduce pain and fatigue while increasing balance and comfort. They're far