This high ventilation quality muzzle can be very useful in many situations and everyday use - visits to a vet, traveling, off-leash walks, preventing eating off the ground, yet allow for panting, providing the ultimate in comfort and safety for both the dog and owner or trainer. Well-fitting, light weight, soft and comfortable yet strong and durable. 3/4" wide behind the ears strap is adjustable and won't stretch. Sized to fit up to 25" neck circumference. Please measure snout circumference and length for fit.