One of our thickest mats is made using a ribbed, closed-cell foam structure that resists moisture from sweat or spilled water bottles, and wipes clean with a cloth. Thick enough to provide a cushion for floor based exercises, but roll or fold flat for easy storage when they are not needed. 5/8" thick, 23" wide and 56" or 72" long. Jet Black or Tranquility Blue. Also available in a Hanging option. Racks available.