Medical Grade Support. Built to Move You Forward. Designed by a podiatrist with over 20 years of clinical experience, The Best Insole is a three quarter semi flexible orthotic engineered to support alignment from the foot upward. Clinically tested with up to 97% patient reported pain reduction. Product Details • Three quarter orthotic shell• Semi flexible Sarlink material• Designed for structural alignment• No trimming required• Fits most shoes including athletic shoes, work boots, flats, and cleats• Patent pending Sizing Select your regular US shoe size. The device runs approximately two sizes long by design. We adjust sizing internally before shipment to ensure proper alignment. Example: If you wear a Men’s 10, select M10/W12 and we will ship the calibrated size. If you are between sizes, please contact us before ordering. How to UseInsert into your shoe after removing the original insole if removable. Wear consistently to allow your body to adapt. Material Constructed from durable semi flexible Sarlink plastic designed for long term structural integrity.Results based on internal clinical data. Individual results may vary. This product is not intended to diagnose, treat, cure, or prevent any disease.