Luxury 90% DUCK DOWN King Size Duvet 4 TOG Lightweight Quilt 100% Cotton Feather

4 TOG (not 4.5! - specifications don't provide a 4 tog option to select). A light warm duvet in soft, dobby woven cotton, filled with 90% duck down and only 10% feathers. Making it a luxurious, more comfortable feel with longer durability than the more economical, high feather content version.