The Plantar Fasciitis Night Splint Stretcher can be worn on the right or left foot . NEW AND IMPROVED We redesigned our plantar fasciitis socks based on customer feedback. Now with medical-grade materials, a wider toe box, longer ankle straps and more effective toe stretch straps to speed up your recovery process. Heel Pain Relief "Over time, this dorsiflexion sock helps relieve foot and heel pain associated with plantar fasciitis, Achilles tendonitis, heel spurs and arch pain, which is associated with inserting Unlike insoles, which only provide temporary relief. NIGHT USE "Wear this plantar fasciitis support while you sleep to improve daytime mobility. The adjustable strap pulls back over your toes to provide a deep therapeutic stretch to your plantar fascia , allowing the connective tissue to heal properly overnight. It takes some getting used to sleeping with your feet dorsiflexed, but these lightweight night splint socks for plantar fasciitis treatment may be easier to get used to than sleeping in stiff plantar fasciitis boots.