(SEE AVAILABILITY ABOVE FOR ESTIMATED DELIVERY) - Fabrifoam Pronation Spring Control (PSC) Device Pronation Spring Control (PSC) Device. Left, Size: L, Shoe Sizes; Women's:; 11 - 13, Men's:; 10 - 12 - Fabrifoam Pronation Spring Control (PSC) Device - Relieves the pain of plantar fasciitis, chronic heel pain, heel spur syndrome & shin splints without adhesives. When worn during walking, the force of heel strike is reduced, the foot"s midline is biomechanically moved to a more normal position & the arch is supported. Durable Fabrifoam composite material breathes & resists migration. Hand rinse, air dry. Latex free. - Rolyan products are internationally licensed & manufactured for home & clinical use. Most of their products offer a lifetime warranty.