1. These doggy goggles feature high quality ultra-hard lenses, a soft PVC frame, and 2 strips of adjustable elastic for durability.2. Our dog sunglasses meet the UV rate standard and the lenses are resistant to UV and glare. Frame vents disperse internal fog and increase the safety of your dog's eyes. I wouldn't advise you to wear it swimming.3. The soft frame fits the skin well and does not shave the dog's face and eyes. Prevent droplets and pebbles from getting into the dog's eyes when the dog's head is outside the car window. Protect dogs' eyes when they run, ski, or travel. They are great outdoor eye protection.4. For medium to large dogs such as German Shepherds, bulldogs, Labradors, Grays, Huskies, Dobermans, retrievers, etc. Not recommended for oversized dogs such as Newfoundland, Great Dan, St. Bernard, etc.