Natural high density wool for comfort and durability Strong adhesive for placement directly onto shoes, sandals or orthotics Perfectly contoured for use with the Comf-Orthotic® Insoles, when more arch support is desired. 5/16″ thickness complements shoes that already have some built-in arch support. Sizes: Small (S) 5/16″, Medium (M) 5/16″, Large (L) 5/16″
