OEM is our best. Baffle box construction: Baffle walls for maximum loft Boxes to prevent content shifting 233 thread count: 233 threads / sq inch to prevent down from escaping 100% Fine Cotton to allow the down to breathe 50% washed white goose down for filling: Goose down to provide better lofting and insulation Maximum thermal properties, light, fluffy Hypo-allergenic: Anti-microbial process used to eliminate bacteria and render filling hypo-allergenic