Folding Mat 200 x 120 x 5 cm RG 80 Information about material and mat sizes: This mat measures: 200 x 120 x 5 cm, folded: 66.7 x 120 x 15 cm. All of our mats are upmarket, CFC-free premium-quality products. Soft resistance and core material: The core is made of polyurethane foam RG 80 (80kg/m3). RG means volume weight (German: Raumgewicht) and states the degree of hardness of the mat. The higher the volume weight, the smaller the cell structure, i.e. the harder the core. Therefore, a 75 kg person subsides only 1 cm on a RG 120 mat, whereas the same person would subside about 2.5 cm on a RG 80 mat. Cover: The cover is made from a blue tarpaulin fabric. This tarpaulin fabric is made from a tearproof synthetic-polyester-fabric, agreeable to the skin. All of our covers are water-repellent, but not waterproof, due to the seams. The mat is available in red, dark green, light blue, or multicoloured (yellow-red-green).