Eye Protection: The dog sunglasses stay in place and provide a good fit with the adjustable head and chin straps, the dog wouldn't take it off easily. Lightweight and smooth frame will not stress your pet's face and protect your pet's eyes from damage. Highly recommended for dogs that suffer from eye diseases. Quality Materials: Soft TPE frame dog glasses and 2 adjustable flexible straps. Durable and hard to break, the lenses are UV resistant. The exhaust holes in dog sunglasses can help your dog dissipate heat. Cool Diaper for Outdoor Activities: Perfect for daily walking or enjoying hanging your head out the window during car rides, prevents tears from your pet's eyes and provides good eyesight. These glasses can be used all year round and can also protect against snow and wind when your dog is playing in the snow in winter. Easy to store: Our dog glasses are equipped with a zippered pet glasses case to prevent the pet glasses from being scratched. Beautiful packaging is a great gift for your dog. Size: Adjustable head strap length: 8.6-15in. Chin strap adjustable length: 7-11in. , suitable for most small to medium sized dogs.