Keep Dirt at the Door with Thorogood Shoe Ins! Your Shoe In is made of high quality EVA material for lasting comfort. The shoe you wear with any Shoe In will determine proper fit. No Shoe In should be used for climbing or running as this may pose a potential trip hazard. Do not wear Shoe Ins while driving. Your Shoe In cannot prevent all slips and falls. Shoe In with Ice-Ts (Ice Traction System) should not be worn on non-ice covered surfaces. Shoe In with Safety Toes is tested to the ASTM F 2413-05 Standard but cannot comply with the standard. The ASTM F 2413-05 Standard states no overshoe can meet or comply with the standard.