How the three compare
Every figure below is read from Company of Animals’ own US product pages on October 10, 2026, and dated in our registry. Where the brand does not publish a figure we write that rather than filling the cell.
| What matters | Baskerville Ultra | Baskerville Classic | Baskerville INVISA |
|---|
| Sizes | 1–6 | 1–10 | 1–6 |
| Material | Thermoplastic rubber (TPR) | Improved TPR, padded nose piece | Transparent TPR, 360° padded basket |
| Pant & drink | Yes (brand-published) | Yes — “at all times” | Yes — plus treats and vomiting |
| Treats through the basket | Yes | Yes, with the guard removed | Yes, with the guard removed |
| Heat-shapeable | Yes — 2 min in hot tap water | Yes — reshape in hot water | Yes — 1 min in hot tap water |
| Security | Neck strap + collar loop + headstrap | Neck strap (no headstrap published) | Neck strap + collar loop |
| Anti-scavenging guard | Not published | Yes — included guard layer | Yes — removable insert |
| Price tier | Budget | Budget | Top of the Baskerville range |
Yes, all three are Company of Animals products, and we are not going to dress that up as a coincidence. The Baskerville line is what the US market stocks, what vets hand out, and what Cornell names in print. The sub-$20 generic baskets that fill the rest of the search results are not ranked here for one reason: they do not publish a material, a size chart tied to nose measurements, or a strap specification we can check. On a product whose entire job is to be sturdy enough to stop a bite and roomy enough to let a dog breathe, “we could not verify the specs” is a finding, not a gap.
Why the Ultra is the default answer
The Ultra wins on the one thing nobody can engineer around: you can make it fit. The TPR basket softens in hot tap water in about two minutes, and Company of Animals describes shaping it “like a mouthguard” to your dog’s own face before cooling it in cold water to set. That is a genuinely useful property when the gap between size 3 and size 4 lands exactly where your dog’s nose is, and it is the difference between a muzzle that rubs and a muzzle your dog forgets it is wearing.
It also has the most security of the three. The brand publishes a collar loop — the muzzle threads onto the dog’s own collar so it cannot simply be pawed off — plus a headstrap, and it “strongly recommend[s]” using both while a dog is still acclimatizing. For a reactive dog on a public sidewalk, a muzzle that cannot be shed in the two seconds after a trigger appears is the only kind worth putting on.
Two caveats, both from the brand’s own page. The molded shape is not permanent — Company of Animals says the material “will return to its original shape over time,” so expect to redo the hot-water fitting every few months. And Baskerville sizes are sold as separate Amazon listings, so the buy button here opens one representative size: measure your dog’s nose first, then use the size selector on the listing. Our full Baskerville Ultra review goes through the fitting, the sizing trap and who should skip it.
When to buy the Classic instead
Two situations, and they are both specific. The first is a long, narrow muzzle. The Classic runs to ten sizes against the Ultra’s six, and Company of Animals recommends it by name for German Shepherds, Dachshunds, Greyhounds and other longer-nosed breeds — which is to say, the shapes a six-step size run serves worst. If you have a German Shepherd or a sighthound, start here.
The second is scavenging. The Classic includes a guard layer the brand says prevents food and wildlife scavenging, rock eating, coprophagia and licking a wound after surgery. For the dog whose emergency vet bill came from eating something on a walk rather than from biting anyone, that guard is the entire product. Note the trade-off honestly: with the guard fitted you cannot post treats through the basket, and treats are how a dog learns to accept a muzzle. Train with the guard out, then fit it for walks.
What the Classic gives up is the headstrap. The brand publishes a “secure easy-to-adjust neck strap” and the basket design, but no second strap over the head, so on a determined dog you are relying on the neck strap fit and the collar loop alone. That is the one reason we rank it second rather than first.
Why a clear muzzle is not a vanity purchase
The most common reason a muzzle fails is not mechanical. It is that the owner is embarrassed to use it. People cross the street. Someone says something. The muzzle ends up in a drawer, and a muzzle in a drawer prevents exactly nothing. The INVISA is Company of Animals’ answer: the same heat-shapeable TPR idea in a transparent basket the brand describes as “less visible on the dog,” with a 360-degree padded basket and a removable guard insert. The brand also publishes that a dog can pant, drink, take treats and even vomit while wearing it, which is a detail most muzzle listings never mention and a real consideration on a car-sick dog.
Be clear about what you are buying. “Less visible” is a claim about appearance, not about safety: anybody who looks twice still sees a muzzle, and the INVISA sits at the top of the Baskerville range on price for the same size. It publishes no headstrap either. We rank it third on specs and recommend it first to one specific person — the owner who knows they will not put a black basket on their dog in public.
Fitting it, and the mistakes that make a muzzle useless
Measure first: nose length from just below the eyes to the tip, and nose circumference around the widest part of the muzzle, with the mouth closed. Where the two measurements point at different sizes, Company of Animals says to go by nose length. Then check the five clearances VCA lists — sturdy enough to prevent a bite, roomy enough to pant and take treats, off the soft flesh of the nose, clear of the nostrils, not touching the eyes — and set the strap to Cornell’s number: one to two fingers underneath, tight enough that it cannot slip over the head.
Four mistakes we see repeated everywhere. Buying a sleeve muzzle for a walk — it stops the panting and hides the warning signs, and VCA restricts it to urgent situations with no alternative. Leaving it on an unattended dog— Cornell says never, because it can come off and be chewed or swallowed. Using a muzzle to stop barking— VCA says explicitly that a muzzle is not a tool for that, and a basket muzzle does not prevent barking anyway. Putting it on cold, on the day you need it.A muzzle a dog has not been conditioned to wear adds panic to whatever situation made you reach for it. Cornell’s method is treat-led and takes a week or two of one-to-two-minute sessions — we walk through it step by step in how to muzzle train a dog.
Where a muzzle fits with the rest of the walk
A muzzle manages the mouth. It does nothing about the end of the leash, which is where a reactive walk is actually won or lost. The pairing we would run: a front-clip harness or a head halter for steering, a short lead for close control, distance from triggers as the real strategy, and the muzzle on top as the margin for the day distance fails. Our reactive-dog gear hub lays out that whole kit, and head halterscovers the one piece of gear people most often confuse with a muzzle — a Gentle Leader or Halti loops the nose to steer the head and leaves the mouth free, so it is not a bite guard at all. If you need both jobs done, you need both products.
One more thing worth saying plainly. Cornell notes that a muzzle-trained dog can be handled more gently in a clinic, with less physical restraint, because the staff are not managing a bite risk with their hands. That is a good argument for conditioning a muzzle on a dog that has never bitten anyone — before the emergency, the stitches or the x-ray that needs doing. And if your dog has a bite history or handling sensitivity, Cornell’s advice is to work with a qualified positive-reinforcement trainer or a board-certified veterinary behaviorist rather than a page like this one. We sell no consultations; we will just tell you that is the right call.
Our bottom line: the Ultra for almost everyone, the Classic for long noses and scavengers, the INVISA if appearance is the thing keeping the muzzle in the drawer. Buy the one you will actually use, fit it to the numbers above, and spend the next two weeks feeding your dog dinner through it.
