Made of 75% NEOPRENE and 25% nylon, of high quality. Made of 75% NEOPRENE and 25% nylon, of high quality. – Features an internal lining that is very skin-friendly, with hypoallergenic, breathable, perspiration-resistant, non-toxic and non-slip properties. – Features ten magnets that help improve blood flow, increase oxygenation of all tissues, enhance hyperemia and promote faster Rehabilitation. – Washable.