Sunglasses design: Pet goggles consist of high-quality UV resistant lenses and a sponge frame. The sponge frame is soft and breathable, and will not cause pressure on pets' eyes. Eye protection: Nanshan dog sunglasses are windproof, waterproof, UV resistant, and snow resistant, suitable for cats and small to medium-sized dogs. Cool style: suitable for outdoor cycling, beach sunshine, swimming, ice skating and other activities. Almost pets can wear it to protect their eyes from dust damage. Adjustable strap: Depending on the size of the pet's head, goggles can be adjusted to prevent slipping. Size: Headband adjustable range: 30cm, chin strap adjustable range: 24cm, suitable for small and medium-sized dogs. Please measure the pet size before purchasing.