SUITABLE FOR SMALL AND MEDIUM DOGS: Adjustable strap-designed with 2 ear holes at the top (recommended for long ear pets), and the adjustable non-elastic neck strap, the cap can easily keeps on and adjust for better fit. PREMIUM MATERIAL: High quality Oxford fabric outer layer and canvas lining are durable and breathable, suitable for everyday use. SUN PROTECTION: With enough brim wraps around your dog's forehead, this hat can effectively protect your pet's eyes from strong sun rays during outdoor activities. Please fold it in half before use so that it stays curved to better help block your dog from the sun. MAKE YOUR PET BECOMES SPORT SUPERSTAR: See, fitness gurus is coming This fashion and unique baseball dog cap will make your dog more handsome and eye-catching like a sport superstar. It's also the perfect costume dressing. SIZE INSTRUCTION: S: Suitable for small dogs(neck circumference 22-34cm); M: Suitable for small and medium dogs(neck circumference 28-41cm). Please refer to the size information and take each measurement a bit loosely. Note: To ensure better purchasing experience, please DO NOT buy before practical measurement.