Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products. Something we hope you'll especially enjoy: FBA items qualify for FREE Shipping and Amazon Prime.If you're a seller, Fulfillment by Amazon can help you grow your business. Learn more about the program. Step out to your next challenge with confidence with this Powerstep® Original insole. Arch support is firm but flexible and cradles your heel. Dual layer construction with a low profile for all day performance. Ultra-thin profile fits into most shoes. Designed to fit into low-profile shoes to provide extra support and stability. Cushioning in key areas gives you support where its needed. Fits almost any shoe. Full length cut with contact throughout provides optimal support. No cutting needed so you can move your insole from shoe to shoe. Responsive polypropylene support shell helps reduce fatigue. Covered with a polyester fabric top that helps control odor. Dense foam EVA base provides durable shock absorption. 100% man-made materials. Made in the USA.