CanDo ArmaSport Sup-R Mat exercise mats are high quality closed cell foam exercise mats that are tough enough for clinic, school and fitness center. Mats can be hung for storage with rubberized grommets. These latex free and phthalate free mats have a soft cushioned feel. Closed-cell NBR foam provides excellent elasticity, energy absorption and resistance. Mats are ribbed on both sides for anti-skid traction when in use and ventilation when in storage.