Size: The dog goggles are suitable for small and medium breeds, such as Boston Terrier/Schnauzer/Corgi. Elastic headband: 34cm-25.5cm, elastic chin strap: 15cm-22.5cm (measured without stretching). Soft and comfortable: The inside of the sunglasses is made of TPU, and the frame cushion is soft and comfortable, which will not press on the pet's face or eyes. The dog goggles protect the pet's eyes from wind, dust, sand, etc. High-quality materials: The TPU dog goggles are environmentally friendly, sturdy, and durable. These glasses are lightweight, so your pet will not feel restricted. The UV-protected lenses can protect your pet's eyes from sunlight at all times. Outdoor activities: When your dog sticks its head out of the car window, these glasses will provide good protection for your dog. Your dog can enjoy the outdoor scenery, even party and travel with others. These protective glasses can be worn all year round and can protect against snow and wind even when skiing in winter. Adjustable: The elastic headband and chin strap can be adjusted and tightened, easy to adjust, comfortable, and easy to wear. It is also the best gift for your pet on Halloween, Christmas, and New Year.