At Egyptian Cotton Kingdom our beautiful Egyptian Cotton Bed in a Bag Sets in a single ply come with White Down Alternative Comforters which feature a Down-Proof Cover of 300 Thread Count hypoallergenic fabric in 100% Egyptian Cotton with a Damask Solid Sateen. It's edged with Double Self Piping for a clean finish. Because of their luxurious feel and unbeatable warmth the alternative down comforters are a popular favorite. Many of these Alternatives are made of synthetic materials (Micro-Polyester) that simulate the look and feel of down. Our Comforters, are made from a hypoallergenic synthetic material that has proven to be a near match to down in warmth and comfort. For people that have allergies to the down of ducks or geese we offer Bed in a Bag Sets with Down Alternative Comforters! Alternative Down comes with an added bonus of being able to be Machine washed!