Bio-Fit is an advanced multi-purpose insole, which combines anatomical support with superb cushioning. The upper layer is made of soft moldable foam, which shapes to the contours of the foot within a few days, offering a customized fit and alleviating pressure points. The bottom layer, made of closed cell polyurethane foam, provides long lasting shock absorption, making every step you take soothing with comfort. Deep contoured heel-seat along with thick cushioning layers under the heel work wonders for heel-pain, heel spurs and plantar fasciitis. The insoles are made on a separate mold for each shoe size, insuring precise fit and customized comfort. The result: The ideal insole for sensitive feet that need customized support and extra protection.