PAM ESD insole is ergonomically designed by a Doctor, using a patented combination of high density dual layer 100% memory foam for anti-static footwear only. PAM ESD doesn’t make regular footwear ESD compliant. Ideal for stationary and mobile workers. For use with Anti-Static Footwear only. Product Details STYLE: PAM-ESD Features: For maximum shock absorption and anti-static control. ESD anti-static threads provides electro-static dissipation. Patented 100% dual layer memory foam. Silver ion anti-microbial technology in top cloth offering anti-bacterial, anti- perspiration and anti-odor. Soft Contoured Arch Support for Balance, Comfort and Cushioning. Size Range: Men's 3-14/Women's 5-12