Deep supportive heel cup Anatomically correct arch Heat moldable sub layer Designed for running shoes, tennis shoes, cross trainers, hiking boots and ski/snowboard boots Archmolds Men's / Women's Maximum Full Length Insoles pack plenty of cushioning, enhanced with custom-molded support It's easy to get customized support and cushioning with Archmolds. These heat-moldable, full-length insoles conform to your heel, arch and ball of foot for total foot support. Warm each insole in the oven (detailed instructions included), insert them in your shoes, stand on them for a minute, and they will mold to the shape of your feet. The customized arch support and heel cup help relieve arch pain and heel spurs, while a 3mm layer of polyurethane cushions your stride. A polyester cover wicks away moisture for a dry, fresh foot environment. Great for people who spend hours on their feet, these insoles are designed for heavy-duty shoes with removable insoles like hiking boots, work boots or running shoes. Caution: If you suffer from chronic foot pain or have circulation problems or diabetes, check with your doctor before wearing Archmolds.