How to choose the correct size: Choosing the correct size of the Gentle Leader Headcollar for your dog is simple. All you need to know is the approximate weight of your dog. The only exception is that certain breeds with specifically large or small heads may use a size other than what is listed for body weight. All sizes are adjustable to fit a variety of breeds in the specified weight range.

Petite
For dogs under 5 lbs.
Examples: Miniature Pinscher, Yorkshire Terrier, Chihuahua

Small
For dogs under 25 lbs., including toy breeds and small dogs with a narrow, small muzzle.
Examples: Toy Poodle, Lhasa Apso, Dachshund, Bichon, small Sheltie, Pomeranian, Shih-Tzu, Basenji

Medium
For dogs 25 to 60 lbs., including small dogs with a broad muzzle.
Examples: Cocker, Springer, Brittany, Collie, Border Collie, Beagle, smaller Boxer, Airedale, Australian Shepherd, Samoyed, Norwegian Elkhound

Large
For dogs 60+ pounds and some dogs under 60 lbs. with larger heads.
Examples: Basset, Golden, Lab, German Shepherd, Doberman, Sharpei, Bulldog, Rottweiler, Old English Sheepdog, Coonhound, Malamute, Akita, Great Dane

XL
For dogs 130+ lbs.
Examples: Newfoundland, Mastiff, St. Bernard

Note about puppies: Puppies of medium and large breeds can start at 8 to 10 weeks with a Medium Gentle Leader which they can wear until they reach 60 pounds. Puppies of large breeds that are already over 40 lbs. should start with a Large.

Reviews

"I have found the Gentle Leader to be extremely effective in dealing with a variety of problems. Specifically, it is invaluable for dogs which pull on leashes and for dogs which lunge at other dogs or people. The Gentle Leader provides a quick and easy-to-use, humane option for concerned owners."  —Dr. Ian Dunbar, Animal Behaviorist, Veterinarian, International Author & Speaker, Berkeley, CA

"I started using the Gentle Leader in my obedience classes years ago when I was asked to field test the product. It's innovative, humane, easy to use and it works! I know that through the years this device has literally saved the lives of many dogs. I strongly urge all serious trainers to conduct their own test of Gentle Leader and discover first-hand what a wonderful addition it can be to their training program."  —Terry Ryan, International Author & Speaker, Pullman, WA

"There is hardly a dog owner who has not at some point found the awful truth—dogs can pull with the strength of wild horses! Taking a wild and crazy dog and teaching him to walk in public doesn't have to be a struggle. Getting a dog to walk on a leash with ease is a matter of a little horse sense and a little ancient technology... Instead of using a collar and leash, the best tool for controlling a wild horse is a halter—and for a dog, the solution is exactly the same. The halter I prefer is the Gentle Leader... one of the advantages is that it is convertible. You can use it as a regular collar, or you can use it as a halter at your convenience. If the dog is tugging, you can use the nose loop and suddenly you've got a halter. If the dog learns to walk correctly on a leash and is not distracted, then you can slip the nose loop down and use it as a regular collar."  —Gary Wilkes, International Author & Speaker, Scottsdale, AZ

"Last year we fit more than 1,000 of our students' dogs with Gentle Leaders®. Our students are pleased with the results, and we're happy because we know that well-trained dogs live longer and healthier lives."  —Marti and Deb McCann, McCann Professional Dog Trainers, Ontario, Canada

"It's the closest thing to magic I've ever seen. It's so exciting to put Gentle Leader® on an aggressive or exuberant dog, and within a few minutes, the dog has calmed down and the owner has control. With the ability to control even the largest of dogs, the owner relaxes, and learning and behavior changes quickly take place."  —Marcia Koenig, Trainer, Seattle, WA