Himelon SP series has the flame retardancy of FMVSS 302 and is similar to Himelon SN series. The material is manufactured by natural material, wool which has excellent biodegradability and is environmentally friendly. Wool is commonly known for its retention, shock absorption, oil absorption, water absorption, workability and soundproofing properties. It is suitable for a wide range of applications in automobiles, electrical equipment, stationery, and household-related materials. Unlike 100% wool, rayon does not build up static charge. Wool/Rayon blend non-woven is softer and generally more resistant to insect damage and mildew.