The MedSpec Phantom Dorsal Night Splint has been designed to hold the foot in a neutral position during sleep, thereby helping to alleviate the morning pain and discomfort associated with plantar fasciitis (heel spur). The fully padded internal dorsal stays may be adjusted to increase or decrease dorsiflexion to the desired level. •Dorsal design: Comfortable low profile design enhances patient compliance and there are no hard surfaces to contact opposing leg during sleep •In addition to less bulk, the breathable CoolFlex material is cooler to wear •Adjustable aluminum stays: Fully padded internal dorsal stays may be bent to increase or decrease dorsiflexion to the desired level •Non-skid sole: Non-skid material sewn to sole provides better traction when patients need to ambulate during the night •Elastic tensioner: Elastic material sewn under midfoot provides additional tension on plantar fascia Women shoe size Small - 5 1/2 - 8 Medium - 8 1/2 - 11 Large - 11 1/2 - 13 1/2 XLarge - 14 - 16 XXLarge - 16+ Men shoe size Small - 4 1/2 - 7 Medium - 7 1/2 - 10 Large - 10 1/2 - 12 1/2 XLarge - 13 - 15 XXLarge - 15+"