Easy to wear: 2 adjustable and elastic straps on the dog goggles, very easy to adjust, suitable for most small and medium-sized dogs. Curved design lens: In order to make the dog glasses suitable for dogs face, these glasses are specially designed with curved lenses. Soft frame with vents: The frame of these dog sunglasses made of soft rubber, and there are many comb shape vents on the frame, so dogs will not feel uncomfortable when wearing, and there will be no water mist on the lens. Cool eye protection: Lens is made of high-quality polycarbonate, which can filter and reduce UV, Infra Red and visible light intensity. Protect your pets eyes from snow, UV, wind, dust and fog. Size: Length: 8, width: 2, adjustable length of head strap: 13.5-18, adjustable length of chin strap: 6-9.