AliMed Original PF Night Splint Chronic pain from plantar fasciitis is often worse in the morning. Many professionals believe the pain is the result of contractures and muscle tightening while sleeping. Studies have demonstrated that sleeping in a night splint can materially lessen morning pain. The painful stretching process is eliminated by avoiding footdrop and accompanying muscle tightening. The foot plate is set in 5 dorsiflexion. The strap at the instep ensures that the foot sits in registration with the splint. Strap pads protect leg and instep from pressure. Liner included. Splint fits left or right foot. Suggested code: L4396. Specify size when ordering. AliMed PF Night Splint, X-Wide fits larger calves and ankles. Ventilated. Use #6611 Replacement Liners. Available in Large only. Sizing for Original: Small fits Womens' shoe size 4 - 7.5 Med. fits Womens' shoe size 8 to 10, Men's 6 to 8-1/2 Lg. fits Womens' 10-1/2 , Men's 9 Sizing for X-Wide: Approximate with Shoe size and fits left or right foot Lg. fits Womens' 10-1/2 , Men's 9