FS6 is an advanced medical grade support sleeve, manufactured to treat plantar fasciitis, heel pain, arch pain & circulation/swelling using graduated zone compression technology. Increases circulation, reduces inflammation. Finally no more bulky night splints. FS6 gives 24 hour relief & protection. Wear comfortably under socks when active for extra support and/or while sleeping to reduce morning heel pain. Easy care, long use. FS6 gently lifts & stretches plantar ligaments without pressure. Stabilizes muscle tissue & improve vascular foot health. Designed with over 20 compressions on each side of heel. Latex free. Wear while walking, running or work-outs. Open toe area with deep heel pocket. Approved by the APMA (American Podiatric Medical Association), listed Medical Device CE mark. Tested by leading foot surgeons for efficacy. Easy 3-minute hand wash, NO bleach, air dry naturally away from direct heat/sunlight. Not intended for use on broken or injured skin.