Maximum ergonomic performance cushioning! Full length patented Ergosert technology layer and added inserts for the heel and forefoot area provide industry leading compression performance, continuous resiliency and shock absorption to fight fatigue backed with a 2 Year WARRANTY. Anti-Blister Top Keeps feet cooler, drier, & less prone to blisters. Fatigue Fighting Cushioning Ergosert™ technology is laboratory certified to have the same ergonomic properties as premium industrial anti-fatigue matting. Ergosert™ material is lightweight and durable, it does not harden like PVC foam, does not breakdown like latex foam or take a compression set like EVA foam. Ergonomic Tuned Cushioning Ergonomic tuned Cushioning is based on foot size and weight. Extra Deep Heel Cup Helps cushion the foot naturally, utilizing the cushioning tissues in the heel of the foot. Tapered Toe Design Provides better fit in all shoes. Air Flow Vents molded into the shape of the arch help move warm air out and draw cooler air into footwear. Anti-Blister Top Cover By controlling the amount the foot slides across the insole’s surface, the anti-blister top cover helps prevent blisters and keeps feet cooler & drier. Versatile Fit and Use Ergobuddy® insoles will fit boots, hiking, casual, and athletic shoes. They are performance insoles to be used all day for standing, walking, or running. PVC & Latex Free Insoles Fitting: Remove the existing insole and slide the new Ergo Comfort Insoles into your shoes. If your new insoles need to be trimmed, use a pen and trace the old insole’s shape (forefoot part only) on the bottom side of the new insole. Carefully cut the new Ergo Comfort insoles with scissors and place them in your shoes. Ergobuddy® and Ergosert™ are trademarks of Johnson Technologies Corporation.