ANTI-FATIGUE: Constructed with open-celled polyurethane foam, the STASOLE work series insoles provides excellent cushioning characteristic and delivers energy return to your feet with every step for all-day comfor SHOCK ABSORPTION: With dual density design, the gel in the heel and forefoot would provide better shock absorption. The contoured biochemical heel cup would provide better motion control while walking or running. ARCH SUPPORT: The dynamic arch design adapts to all arch types – low, neutral, and high arches and offers additional arch support for stability. COMFORT GUARANTEE: Buy stasole insoles and discover what exceptional support does for the comfort of your feet. All stasole insoles come with a one-year unconditional comfort warranty that starts from the date you place your order. If you are not satisfied, please be sure to contact stasole customer service and we will refund all your money.