Our patented Converta-Fit™ wrap skirt on this mattress pad provides a guaranteed fit on all mattress types conventional, high profile and waterbeds. The quilted sides offer added comfort and extra side protection. U.S. Patent No. 5,287,574.  It has a 3 year limited warranty.  Fabric is 50/50 cotton/polyester blend.  The fill is 3.75 oz. per square yard of bonded polyester.  The skirt is a Converta-Fit™ patented wrap skirt is guaranteed to fit mattresses up to 15” thick.