From Foot Petals, the Plantar Fasciitis 3/4 Orthotic Insoles feature: Unique multi-cushioned PowerStep® technology improves stability and provides relief for common aches and pains 3/4 length support with an odor control top fabric that helps reduce heat, friction, and perspiration Firm but flexible contoured neutral arch support with a low, flat heel cradle and a non-slip pad at the heel to hold orthotic in place for increased comfort, stability, and motion control for those with standard arches Premium slow-recovery foam cushioning cradles and contours foot for increased comfort in low-profile shoes, leaving extra room at the toes Perfect balance of comfort and support that stabilizes and aligns the feet to help relieve and prevent pain from mild to moderate pronation Moveable from shoe to shoe with no trimming required Great for boots, booties, slip-ons, sneakers, and athletic shoes Available in 1 pair Sizing: Small: Fits Women's 6-6.5 Medium: Fits Women's 7-8.5 Large: Fits Women's 9-10.5