Breathable and Adjustable: The dog muzzle is made of durable nylon and breathable mesh to allow your dog to breathe properly. Features an adjustable strap that allows you to adjust the straps to fit perfectly and stay stable. Complete Protection: The 363° global design allows you to completely cover your dog's mouth. Triangle buckle for a stronger adjustment and in the drop test. Effective protection against biting, licking, and chewing. Quality and Safety: Practical and reliable muzzle made of PVC respectful; environment, odorless, with comfortable and durable design and soft fabric for the skin. The ergonomic harness prevents the dog from; removing it with its paws. Dimensions: Measure the circumference of your dog's mouth and neck. We have different sizes for small, medium, and large dogs. Please refer to the size chart and choose the size that fits you. If you are unsure about the size to choose, the largest size will fit you better. Please check before purchasing.