GeoBlend Canvas Dog Bed -100% Cotton Twill Cover Filled Fiber - Otter Green -Rectangular - 36x28x4, Otter Green 100% Natural Cotton Canvas Twill Cover Removable & Machine Washble outer cover Water-resistant inner cushion cover filled with GeoBlend fiber GeoBlend fiber helps reduce your carbon footprint by keeping preconsumer textile offcuts out of landfills Industrial strength zipper on outer cover