The SureWerx MEGAComfort Safety and Occupational Insoles are ergonomically designed by a doctor, using a patented combination of high-density dual layer memory foam. These insoles have been field tested to reduce pain and fatigue while also increasing balance. Featured in the insoles are shock absorption designed to be used in industrial footwear. Additionally, they can be used in steel toe footwear and are ideal for stationary, mobile, and outdoor work. The individual sizes of each insole eliminate the need for cutting and trimming to make them fit shoes or boots.