Premium Material: Top: 65gsm 100% polyester microfiber, Bottom: 40gsm, 100% poly non-woven; Skirt: 80sm, 100% poly one way knit, one-way stretch, 15"fits up 18", Filled with 4OZ/YD2 boned polyester. Safe, harmless, non-irritating and odorless, all-round protection of your health. Ideal Mattress Pad: This cover uses cotton and polyester fiber to provide an extraordinary level of comfort that will change your sleep for the better. The skirt is constructed using a polyester for best comfort. This Mattress Pad is a perfect choice if you're considering a comfortable, soft, breathable and high quality mattress pad. Exquisite Workmanship: Multi-needle quilting; Barrier Layer: 25gsm TPU laminated on top quilting layer, Styling: Hydra-bond, Skirt fit up to 18" stretch. The bottom has 0.6CM tightly folded. This exclusive and extraordinary fiber technology gives you the look and feel of down only better, and makes the mattress pad hypoallergenic WATERPROOF FEATURES: The waterproof barrier protects your valuable mattress from spills and accidents, even if you accidentally spill a drink or water, it will not penetrate, thus effectively protecting your bed.