iMovR’s Hybrid Standing / Chair Mat is made using the same 100% polyurethane formulation and rugged, unibody construction that EcoLast™ brand mats have become famous for. That means that caster wheels and even stiletto heels will never damage it, and it will provide more comfort and health benefit than any other mat on the market. On inferior mats, wheel impressions can linger for months, whereas on this EcoLast mat, wheel impressions vanish in seconds.