Total thickness is 1 3/8" - Turf Is 3/4" and Closed Cell Foam Is 5/8" (Exact Height As The OptiShot). * The Golf mat measures 36" x 60" and comes with a precision cut out designed for the OptiShot that allows for left or right hand play. * Closed cell foam means that it is waterproof and mold resistent. * Made of 100% spring crimped nylon material. It will not fade, bunch, weather or leave marks on your clubs. * Made in the USA