PLS Birdsong Royal All Seasons Bolster Pet Bed, Dog Bed for Medium Dogs, Waterproof Oxford Fabric, Cooler for Summertime, Modern Design, Easy-Clean, Removable Covers, Luxurious Style The medium size is 22Wx30L. It is most suitable for pets upto 40 lbs. It is recommended for dog breeds such as French bulldogs, Siberian huskies, Brittany spaniels, Hawanese and border collies. Made of oxford fabric that provides a cooler experience in summertime. Strong and durable. Good for lickers and chewers. Nonslip and waterproof bottom that keeps the bed in place and dry on most indoor and outdoor surfaces. Completely removable and machine washable cover with zipper. Easy clean. Overfilled plush with polyester filling made of polypropylene material.