50 X 50 CMFABRIC: VELVET -100% pure cotton, unbleached cover.- Construction: Chain 40s combed - 132 threads per inch, shot 40s combed - 72 threads per inch- Weight: 135 gr/m2.- Down density tested according to Din EN 12132-2- Duck and goose feathers with a down content of 5 - 15%.- Washed and dried at min. 120 ° C for a minimum of 20 minutes.- 4 - 6 cm. length- Complies with British fire safety requirements according to the 1988 regulations, BS5852 Ignition source 2