Superb Material: The lens is made of high quality polycarbonate, which can filter and reduce UV, UV400, Infra Red and visible light intensity. Protect your pets’ eyes from snow, UV, wind, dust and fog. | Adjustable Strap: The strap use cotton high-elasticity elastic band, adjustable elastic cord fit for different head shapes which can let your pets wear the sunglasses in comfortable and firm manner. | Good Protection for Outdoor Activities: The dog goggles will be a good protection aids for your pet if you want to do some outdoor activities with your pets such as skiing, climbing and swimming etc. | Sponge Pad Inside: Sponge is padded around the lenses, high density sponge has a great breathable effect and thermal performance perfectly alleviating eyestrain or the pressure from the shaft and the dog is not uncomfortable to wear normally. | Size Reference: Suitable for medium or large dogs, such as Golden Retriever, Molly, Goldie Shepherd, Huskies, etc. But not suitable for small dogs.