The OMNIFORCE Plantar Fascia Sock is a premium knit that provides targeted compression to the arch and heel. This Plantar Fascia Sock helps support the soft tissues and reduces swelling associated with plantar fasciitis. Sock can be worn all day, over or under socks. Recommended for plantar fascia issues and discomfort. Mueller Sports Medicine INTENDED USE: Provide adjustable support and gentle stretch to the foot. Help support the soft tissues and reduces swelling associated with plantar fasciitis FIT: Large/X-Large. Fits US shoe sizes Mens 11 inches - 16 inches, Womens 12.5 inches- 17.5 inches COMFORT: Can be worn all day, over or under socks CARE INSTRUCTIONS: Hand wash cold with mild detergent, do not bleach, line dry, do not iron, do not dry clean TRUSTED BRAND: Mueller Sports Medicine has been a trusted leader in sports medicine for over 60 years and is committed to helping you reduce pain