Baskerville Ultra Muzzle Review

The short version

If you need a muzzle for a dog that bites, might bite, or eats things it should not, the Baskerville Ultrais the one we would buy first — not because it is clever, but because it is the one you can make fit. The basket is thermoplastic rubber rather than rigid plastic, so two minutes in hot tap water lets you mold it to your own dog’s face. Company of Animals publishes that a dog can pant, drink and take treats while wearing it, and Cornell University’s Riney Canine Health Center names basket designs “such as the Baskerville Ultra” when it tells owners what to look for. Buy the Baskerville Classic instead if your dog has a long, narrow nose or its problem is scavenging rather than biting, and skip the category altogether if your dog is flat-faced.

We own no units and have hand-tested nothing. What follows is read from the manufacturer’s own published specification and from veterinary guidance on how a muzzle should fit and be used, with every source listed at the bottom of this page.

Who the Ultra is for

Three buyers, and it is worth knowing which one you are, because it changes how you use it.

The first is the owner of a reactive dogwho wants the bite risk taken off the table while they work on the actual problem. A muzzle does nothing to change how your dog feels about the dog across the street — that is distance work and counter-conditioning, covered in our leash-lunging guide— but it means a bad moment stays a bad moment instead of becoming an incident. The second is the owner of a scavenger: Cornell lists preventing dogs “from eating things outside that are dangerous or toxic” alongside bite prevention as the two jobs a basket muzzle does. The third, and the one most people never consider, is the owner of a perfectly friendly dog who wants it muzzle-trained before an emergency. Cornell’s point here is practical: a dog that accepts a muzzle can be handled more gently at the clinic, with less physical restraint, because nobody is managing a bite risk with their hands.

What the thermoplastic rubber actually buys you

This is the Ultra’s whole pitch, and it is a real one. Company of Animals makes the basket from thermoplastic rubber (TPR) and describes shaping it “like a mouthguard”: soak it in hot tap water for about two minutes, shape it by hand once it is safe to touch, then cool it in cold water to set the shape and test the fit on your dog.

Why that matters more than it sounds: muzzle sizing is a six-step ladder and dogs’ faces are not. The common failure in this category is a basket that is correct on the size chart and still presses on the bridge of the nose, or sits so wide that the dog can work it off. A material you can locally reshape fixes the near-miss, which is the difference between a muzzle your dog tolerates and one it genuinely ignores. The soft TPR is also kinder on contact than hard plastic if your dog bumps the basket into your leg, the furniture, or another dog.

The honest caveat comes from the brand itself: the material “will return to its original shape over time.” Treat the molding as maintenance, not a one-time setup — re-check the fit every few months and redo the hot-water shaping when the basket has crept back.

Sizing: the part people get wrong

Baskerville sizes by the nose, not by the dog. Company of Animals fits the range on nose length and nose circumference, and says to go by nose length where the two measurements point at different sizes. Breed charts and body weight are the wrong input: two dogs of the same weight can take different sizes, and the only reliable method is a soft tape measure — length from just below the eyes to the tip of the nose, circumference around the widest part of the muzzle with the mouth closed.

Then set the strap to a number. Cornell’s instruction is to adjust it so one to two fingers fit underneath and the muzzle cannot slip over the dog’s head. VCA frames the rest as clearances: sturdy enough to prevent a bite, roomy enough for panting and treats, off the soft flesh of the nose, clear of the nostrils, not touching the eyes, and secured so the dog cannot remove it. Those five checks take thirty seconds and they are the review that matters — a muzzle that fails one of them is not a cheaper muzzle, it is a non-functioning one.

One practical note on buying. Amazon lists each Baskerville size as its own listing, so the buy button above opens one representative size rather than a size-picker. Measure first, then use the size selector on the listing before you check out.

Security: the collar loop is the feature nobody mentions

A muzzle that can be pawed off in the ten seconds after a trigger appears is decoration. The Ultra publishes two answers to that. The collar loopthreads the muzzle onto the dog’s own collar, so even a dog that gets a foot behind the basket cannot shed it onto the sidewalk. The headstrapruns over the top of the head, and Company of Animals “strongly recommend[s]” using both the collar loop and the headstrap for security and stability while a dog is still acclimatizing.

Use both. They cost nothing, they are already in the box, and they are the only part of this product that distinguishes a muzzle from a loose basket resting on a nose. This is also the one clear specification advantage the Ultra holds over the rest of the Baskerville line: neither the Classic nor the INVISA publishes a headstrap.

What it will not do

Four limits, stated plainly, because the wrong expectation is how a muzzle ends up doing harm.

It will not fit a flat-faced dog.A Pug, a French Bulldog, a Boston Terrier — there is no nose for a standard basket to sit on. Do not buy a size 1 and hope; ask your vet or a qualified behavior professional to fit a short-snout design in person.

It will not stop barking,and should not be used to try. VCA states directly that a muzzle should not be used to prevent a dog from opening its mouth or as a tool to stop barking. A basket muzzle leaves the mouth free enough that a dog barks through it anyway, which is by design — a dog that cannot pant cannot cool itself.

It will not train your dog,and it will not work at all if you put it on cold. A muzzle is a safety margin that buys you room to do the distance work; it changes nothing about how your dog feels. Conditioning is the actual prerequisite, and Cornell’s method is treat-led, run in one-to-two-minute sessions over a week or two — our muzzle-training guide walks the full sequence.

It is not for unsupervised wear.Cornell says never leave a muzzle on an unattended dog, because it can come off and be chewed or swallowed. Company of Animals says the same in its own words: do not leave it on for extended periods unless absolutely necessary, and supervise the dog while it is worn. VCA’s wear-time guidance is that a properly conditioned dog can wear a basket muzzle for an hour or more, as long as you offer water when it is thirsty.

Ultra, Classic or INVISA?

All three are Company of Animals products built on the same idea, and the choice comes down to two questions. How long is your dog’s nose? The Baskerville Classicruns to ten sizes against the Ultra’s six, and the brand recommends it for German Shepherds, Dachshunds, Greyhounds and other longer-nosed breeds — the shapes a shorter size ladder serves worst. The Classic also includes an anti-scavenging guard layer for food and wildlife scavenging, rock eating, coprophagia and post-surgical licking, which makes it the pick for a dog whose vet bill came from eating something rather than from biting. The trade: with the guard fitted you cannot post treats through the basket, so train with it out.

Will you actually put it on in public?If the honest answer is no — and that is the most common reason a muzzle fails — the clear INVISA exists for exactly that. It is the same heat-shapeable TPR concept in a transparent basket the brand describes as less visible on the dog, with a 360-degree padded basket and a removable guard insert, and it sits at the top of the range on price. Everything else being equal, the Ultra is the better specified muzzle because of the headstrap. A muzzle in a drawer is worse than any of them.

The verdict

The Baskerville Ultra earns its default status the boring way: a basket that lets a dog breathe, drink and eat treats, a material you can tune to a real dog’s face, and the most complete security hardware in its line — at a price that sits in the same bracket as a mid-range harness. The caveats are all honest ones you can plan around: the molded shape relaxes and needs redoing, the sizes are sold as separate listings so you have to measure before you buy, and it is the wrong product for a flat-faced dog. Nothing here is a performance claim we invented, and nothing about this muzzle fixes reactivity.

Buy it, fit it to Cornell’s one-to-two-finger rule, use the collar loop and the headstrap, and then spend two weeks feeding your dog dinner through the basket before you ever need it. If you are still choosing, our basket-muzzle roundup compares the three Baskervilles side by side, and the reactive-dog gear hubcovers the steering half of the problem — a muzzle manages the mouth, and a head halter manages the direction.