MOW® is made of EVA foam in two densities along with Poron® in the heel area for increased shock absorption. The posting effect is 5-7 mm effectively depending on the size. The cover is made from a high friction polyamide for good durability and comfort. Mediroyal MOW® insole has also been fitted with ESD (Electrostatic Discharge) function which allows it to fully function in a working or hospital environment along with an ESD-certified shoe.