Made from High quality closed-cell PVC vinyl foam Sticky, non-slip foam surface on both sides provides traction for better grip, security and balance. Embedded fabric mesh provides more strength and durability against tearing. A lightly textured, meticulously designed for optimum comfort and durability, offering insulation from cool floors and can be easily rolled or folded storage. Washable Migration of certain toxic metal elements: ASTM F963 ; EN 71-3:1994/ A1:2000 Color fastness to rubbing: BS EN ISO 105-X12:1995 Color fastness to water: BS EN ISO 105-E01:1996 Detection of amines in dyestuff (Azo dyes)