AVAILABLE AGAIN IN 2011 Basic Dog Sweater is just that, simpleness in a sweater. The periwinkle blue acrylic turtleneck sweater is made to keep dogs toasty and cozy. Super-soft, durable, thick knit with ribbed cuffs and waist. High cut belly for convenience. Made of 100% acrylic. Machine washable. Note: If the dog has a stout build, select one size larger.