Spenco insoles are for workers seeking lasting comfort, cushioning and support. These insoles provide targeted shock absorption to soften heel impact. Spenco insoles come with 4-way stretch fabric and Silpure antimicrobial to help prevent blisters while controlling odo. The EVA forefoot pad provides cushioning and energy return for people who spend a lot of time on their feet. Spencore material absorbs shock and impact to provide our most intense comfort and cushioning.