Which Dogs Actually Need to Wear Clothes in Winter? A Breed-by-Breed Guide

If you've ever pulled a hoodie onto your dog and wondered whether you're being a responsible pet parent or just dressing up your dog for fun — the answer is: probably a bit of both, and that's completely fine.

But underneath the cuteness there's a real question, and it's one of the most-searched dog topics every winter: do dogs actually need to wear clothes in the cold? For some dogs, a warm layer is genuinely important for their health. For others, it's unnecessary and can even cause overheating. The difference comes down to breed, size, coat, age, and where you live.

Here's how to tell which kind of dog you have.

The short answer

Most dogs that need winter clothing fall into a few clear groups: small breeds, short-haired or single-coated breeds, thin-bodied breeds, low-riding breeds whose bellies drag through snow, and dogs who are very young, very old, or unwell. Dogs bred for cold climates — think thick double coats — usually don't need anything at all.

If you're reaching for your own coat before heading outside, that's a decent rule of thumb that your dog might appreciate a layer too. Below, the breeds that benefit most.

Small breeds lose heat fast

Little dogs have a lot of surface area relative to their body mass, which means they shed body heat much faster than big dogs. A brisk walk that's perfectly comfortable for a Labrador can leave a Chihuahua shivering within minutes.

Breeds in this group: Chihuahuas, Yorkshire Terriers, Toy Poodles, Miniature Pinschers, Maltese, and most toy breeds.

For these dogs, a snug sweater or fleece hoodie on cold walks isn't a costume — it's the difference between an enjoyable outing and an uncomfortable one.

Short-haired and single-coated breeds have no built-in layer

Some dogs simply don't come with much insulation. Double-coated breeds have a dense undercoat that traps warmth; single-coated and short-haired breeds don't. Without that undercoat, cold air reaches the skin almost immediately.

Breeds in this group: French Bulldogs, Pugs, Boston Terriers, Boxers, Dobermans, and Whippets.

French Bulldogs are one of the clearest examples. Frenchies are short-coated, single-coated, and brachycephalic (flat-faced), which affects how they regulate temperature overall. They tend to feel the cold quickly and show it fast — shivering, reluctance to walk, lifting their paws off cold ground. If you have a Frenchie, a warm winter layer isn't indulgent; it's practical gear. (We're a little biased here — our own French Bulldog is the reason FluffnCo exists — but the vets agree.)

Thin-bodied breeds have no fat to spare

Lean, athletic breeds carry very little body fat, and fat is insulation. A sighthound built for speed has almost nothing between skin and cold air.

Breeds in this group: Greyhounds, Italian Greyhounds, Whippets, and other sighthounds.

Owners of these breeds often find their dogs are the most enthusiastic about clothing — a Greyhound in a fleece isn't being pampered, it's finally comfortable.

Low-riding breeds get a cold belly

Here's a factor most people miss: it's not just air temperature, it's ground contact. Dogs built close to the ground drag their bellies and chests through snow, ice, and freezing slush — areas a standard coat doesn't even cover.

Breeds in this group: Corgis, Dachshunds, Basset Hounds, and other short-legged breeds.

For these dogs, look for a layer that covers the chest and belly, not just the back.

Puppies, senior dogs, and unwell dogs need extra care

Beyond breed, life stage matters. Puppies haven't developed full temperature regulation yet. Senior dogs lose some of that ability as they age. And dogs who are recovering from illness or surgery, or who have conditions affecting their coat, feel cold more acutely and have less energy to warm themselves back up.

For any of these dogs — regardless of breed — err on the side of a warm layer in genuinely cold weather.

Which dogs don't need clothes

Just as important: some dogs are better off without. Breeds developed for cold climates carry thick double coats that do the job better than anything you can buy, and adding a layer can actually cause them to overheat.

Breeds that usually don't need clothing: Siberian Huskies, Alaskan Malamutes, Bernese Mountain Dogs, Saint Bernards, Newfoundlands, and Chow Chows.

Putting a heavy coat on a Husky on a normal winter day works against the temperature control their coat already provides. For these breeds, clothing is only worth considering in extreme cold or prolonged exposure.

How to tell if your dog is actually cold

Breed guidelines are a starting point, but your dog will tell you directly. Watch for:

• Shivering or trembling — the clearest sign
• Lifting paws off the ground or reluctance to keep walking
• Hunching or tucking the tail to conserve heat
• Slowing down, stopping, or trying to head home early
• Whining or looking to you mid-walk

If you see these, it's time for a layer — or time to head back inside. And watch the other direction too: excessive panting or trying to wriggle out of a garment can mean your dog is too warm, which is just as worth paying attention to.

What to actually put them in

Once you know your dog needs a layer, a few practical points matter more than looks:

• Fit is everything. Too loose and it doesn't trap warmth; too tight and it restricts movement. Measure your dog's chest girth and back length rather than guessing from breed.
• Coverage matters for low-riding breeds. Corgis and Dachshunds benefit from chest and belly coverage, not just a back panel.
• Ease of movement. Your dog should be able to walk, sit, and do their business without fighting the garment.
• No dangling parts. Drawstrings and loose cords are a chewing and snagging hazard — look for clean, simple designs.

A well-fitted hoodie or fleece checks all of these for the breeds that feel the cold, and it's a lot easier to get on a wriggly dog than a bulky coat.

The bottom line

Not every dog needs winter clothing — but for small breeds, short-haired and single-coated breeds like French Bulldogs and Pugs, lean breeds like Greyhounds, low-riding breeds like Corgis and Dachshunds, and any puppy, senior, or unwell dog, a warm layer is genuine care rather than decoration. For thick-coated cold-weather breeds, it's usually best to let their own coat do the work.

When in doubt, watch your dog. Shivering means yes. Overheating means no. And if you're bundling up to head out the door, odds are good your short-haired little shadow would appreciate doing the same.

FluffnCo makes matching hoodies and pet hoodies for dogs and their people, built around a good fit and a story. [Browse our dog hoodies → See the matching sets