1. Material: The lenses of dog goggles are made of excellent PC, which can filter and reduce UV, UV400 and visible light intensity. Lightweight, wear-resistant, impact-resistant, and high transmittance. Protect your pets' eyes from snow, UV, wind, dust, and fog to enjoy outdoor activities with you. The top and bottom have vents to prevent the generation of water vapor. Silicone Strap: The double strap is adjustable and non-slip for a perfect fit; It can be removable for cleaning when the strap is dirty; The high elastic strap can be adjusted to any size 4. Outdoor Tool: The dog sunglasses will be a good protection for your pet if they are doing outdoor activities, such as cycling, climbing, riding, and other activities 5. Suitable for medium or large dogs, such as Golden Retriever, Molly, Goldie Shepherd, Huskies, etc.