45S3 45"X27"X3" Full Layer Memory Foam Pad Pet Bed with Waterproof Microfiber Suede cover for Medium Large Dog, Crate & SUV High quality 100% 45"X27"X3" solid gel memory foam be able to support your pet up to 75 lbs and will not flat overtime compare to other bed. The memory foam will be firmer when cooler and reacts to body heat and weight, allowing it to mold to a warm body in a few minutes. We use the similar cooling gel memory foam which sold in high end therapeutic mattress store. Best material to promote better sleep, healthy joint and long lasting. Memory Foam never loses its shape, providing years of comfort & support. The external zipper fabric cover is machine-washable soft Microsuede cover with a non-slip grip bottom to protect memory foam bed from normal wear & tear. The cover is stains and wrinkle resistant in nice coffee brown color. New improved internal liner covers : 1 full waterproof internal zipper taffeta fabric cover in brown color for maximum protection and long lasting application. Fits most brands of crates about 48" length with about 2" clearance in length and width. Also great size in car and SUV either back seat or trunk. Why spend more money to replace the poly-fill bed regularly while you can get a luxury comfort foam bed that your dog will love and last longer with easy maintain? For larger dog, please choose XL, XXL size at our dogbed4less listing.