Mats are covered with 18 oz. tough fire-retardent phthalate-free PVC coated vinyl; cover is sewn around foam. The vinyl coated nylon cover is strong, mildew resistant, anti-bacterial and wipes clean with a damp cloth. The mat is made with square side walls and is reinforced at all stress points for added durability. poly-urethane (PU) foam - 2" thick PU mats have a softer feel, used when cushioning is most important.Mat folds every 2 feet to minimize storage space when not in use. Velcro ends allow mats to safely connect to other mat to “expand" and form a larger mat surface and the mat folds in 2 foot sections for easy storage and transportation
