1.These medium-large dog goggles is made of ultrahard lenses, soft TPU frame and 2 adjustable elastic straps, durable and sturdy.2.Our dog sunglasses accord with UV rate standard, lenses are UV-resistant and anti-glare. Soft padding around the frame would comfortable to put-on. Frame mesh vents can disperse the inside fog, improve the safety of protecting dog's eyes.3.Deep eyecups goggles can stay on the head well without scraping dog's face and eyes. Prevent droplets, dust, tiny stone into dog eyes when dog stick the head out the window on car. Protect dogs eyes when they runing, skiing, traveling.4.Translucent light black lens can also have a good field of vision. Great for medium to large dogs like German Shepherd, Pitbull, Lab, Gree, Husky, Doberman, Retriever, etc. Not recommended for oversize dogs like Newfoundland, Great Dane, Saint Bernard, etc.5.Frame Perimeter: (No Tensile Measurement) The middle of the glasses can be bend adjusted to fit head and avoid glasses slipping off and hurting dog eyes.