FitSkuad Heavy Duty Fitness Mat INCREDIBLE FOR DUOUBLE UNDERS: The top anti slip layer offers excelent grip for the foot thuss avoiding injury. At the same time the jump rope slides excellent on the surface making it excellent for Double Unders and Beating PR and RX EXCELLENT FEEL: A second thin hard layer Layer is provided to offering just enough bounce for a great Feel for the mat. But the jump rope will not bouce of the surface like in the case of other rubbery mats. AWESOME PROTECTION: The soft thick 3rd layer offers Great Absorbsion for the Joints on Impact. Very forgiving on the knees and avoiding those unwanted situations. NO SLIDING AROUND: Special gripping pattern on the bottom prevents the mat from moving/sliding on the surface it was put on.