This warm comforter is made with Ingeo fiber fill, an eco-friendly, natural based renewable fiber made from corn, not oil. This comforter offers impeccable insulation and outstanding moisture wicking properties, as well as low-odor retention. The fill is made with 100% biodegradable Ingeo fibers. The manufacturing of Ingeo fibers requires half the energy needed to make polyester and emits 50% fewer greenhouse gasses. The Ingeo comforter is hypoallergenic, antimicrobial, and machine washable (on hot water setting). Cover is 100% cotton percale and filling is 50% Ingeo and 50% hollow spiral siliconized polyester fiber. Made in Poland by the family-owned Inter-Widex company.