The Spark Paws Sun Protection Dog Shirts come in a pack of two, one green and one blue, both with a high SPF 30 rating for your pet's safety. Made from comfortable polyester material, these shirts are designed to fit dogs in the small size range, specifically 10-15 lbs. The shirts provide high visibility, making your furry friend easily seen during outdoor activities. Ideal for protecting your small dog from the sun's rays while ensuring visibility for safety.