Our Ultimate soft and feather mattress topper is luxury at its finest, with two layers providing premium comfort and support for luxurious night's sleep. Its top layer has a blend of white duck down and white duck feather for pure comfort. The bottom layer features 100% feather fill, which provides support, Crafted with a box cassette stitch design, helping to keep the fill in place and providing even warmth distribution. Finished with a gusseted edge for additional loft, whilst elastic straps hold the topper in place for minimal movement when sleeping.