Low-to-medium-volume insoles take up less volume in footwear, ideal for close-fits Full-length closed-cell foam provides cushioning, while 3/4 length hell caps stabilize Deep heel pockets and rockered bottoms allow for natural shock absorption All natural coating eliminates odor-causing bacteria Sizing is in US men's sizing Imported Best Use:   Fitness, Hiking, Running Material:   Closed-cell polyethylene foam / polypropylene heel cap / nylon lining