This self-warming bed in available in 2 color combinations. The outside of the bed is in poly/cotton and the inside is lined in soft microfleece. The pillow has a layer of metalized insulation that radiates warmth generated from the pets own body heat. A cozy lounge bed that every pet will love. completely machine washable and filled with premium polyfil made from recycled plastic bottles. The bottom of the bed has a layer of "stay put" non-slip fabric for stability.