The SuperSoft Ultra Dog Bed is filled with Hypro-Loft™, an blend of virgin and recycled fibers, which provides unequalled loft retension. The liner will not shift or mat allowing to stay true to form even after washings. Completly machine washable, the ultra bed has a sherpa top and cotton or nylon bottom which removes for easy cleaning. Super Soft Ultra Dog Bed Sizes: * Medium: 25 x 33 inches * Large: 30 x 40 inches * X-Large: 36 x 48 inches * Sherpa top for super soft comfort * Lining removes for easy cleaning * Available in 3 sizes * Choose from multiple fabric options