Happy Hours&reg; Dog Hat, Pet Baseball Cap/Dogs Sport Hat/Visor Cap with Ear Holes and Chin Strap for Dogs and Cats, 2 Sizes, 10 Colors DURABLE -- Material: high quality canvas (100% cotton) SIZE -- Size M (Diameter x Head circumference): 10 x 31 cm / 3.9 x 12.2 inch,The visor edge of hats: 6cm / 2.3 inch. The Size S will fit x-small dogs, Size Medium will fit small dogs, and Size Large will fit medium and large dogs. Please kindly measuring your dogs before you buy it.(Please refer to the product description below for detailed dimensions.) SPORTS VISOR DESIGNED -- Summer Sun Pet Baseball Visor Hats are especially designed for X-small, Small and Medium dogs. which made your dogs look handsome and protect your baby dog from sun, make your puppy look more cute and charming COOL AND COMFORTABLE -- Perfect gifts for your beloved baby pet dogs. With two holes at the top, breathable and comfortable. And with a chin strap to avoid fall off LIFETIME SUPPORT -- Full 12 months Worry-Free warranty with lifetime support! 24-hour customer service support, just purchase and enjoy this superior product with confidence and risk free