Premium Material: Lenses are made of high quality polycarbonate that filters and reduces the intensity of UV, UV400, IR and visible light. Protect your pet's eyes from snow, UV rays, wind, dust and fog. Adjustable shoulder straps: The adjustable shoulder straps are made of elastic cotton straps, adjustable elastic cords, suitable for different head shapes. This allows your pet to wear the sunglasses comfortably and safely. Good Protection for Outdoor Activities: Dog goggles are a good protection for your pet when you want to do outdoor activities with your pet like skiing, rock climbing, swimming, etc. Foam padding inside: Foam padding around the lens, high density foam is very breathable, its thermal regulating properties can relieve eyes and pressure to keep your dog comfortable. Size Reference: Headband size 8. 6-15.7 inches. Suitable for small or medium-sized dogs, but not for large dogs. Please Note: Please measure your pet's size before ordering. Product Details: Material: EVA + Polycarbonate + Nylon Tape. Dimensions: 15 x 3.5 cm (L x W). Weight: 70 grams. Headband: 20 - 40 cm (if loose). Chin Strap: 16-26 cm (if loose). Package Contents: 1 x Dog Goggles. Please note: Due to manual measurement, please allow slight size error. The error may be 1 - 2 cm.