How to Choose a Dog Carrier

Written by

Kosar Koohi Updated 11 July 2026 · 8 Min Read

Kosar is the editor of Pretty Fluffy, a lifelong dog lover, and the proud mom of Yuki, a Maltese who has very high standards. So does Kosar. She researches everything obsessively before it ever makes it onto the page.

I didn't think much about dog carriers at first. I picked one that looked fine and assumed it would do the job.

That worked for a while, until my dog made it very clear she wasn't a fan. Since then, I've realized the right carrier changes the whole experience.

It affects how comfortable your dog feels, how easy it is for you to carry, and how smooth any trip ends up being.

Whether it's for vet visits, travel, or just getting around more easily, it's worth taking a bit of time to choose properly.

Here's how to choose a dog carrier that actually works for both of you.

To choose a dog carrier, start with your dog's size and weight: they should be able to stand, turn around, and lie down comfortably inside. Then match the carrier type (soft-sided, hard, backpack, or sling) to how you'll use it, and prioritize ventilation, secure zippers, and easy cleaning. If you plan to fly, choose an airline-approved carrier that meets your airline's requirements.

Start With Your Dog, Not the Carrier

It's easy to get distracted by styles and features, but your dog should always come first.

Size is the most important place to start. Your dog needs enough room to stand up, turn around, and settle down without feeling squeezed in. Too small and they'll resist it. Too big and they may slide around inside.

Weight is just as important, not only for your dog's comfort, but for yours too. If it feels awkward or heavy, you'll be less likely to use it regularly.

Personality also plays a role. Some dogs feel safer in enclosed spaces, while others prefer to see what's going on around them. Watching how your dog reacts to new environments can help guide your choice. This matters as much for a small dog as a large breed, where a carrier may only suit them as puppies.

How to Choose a Dog Carrier by Size

The golden rule: measure your dog before you buy. Measure their length from the base of the neck to the base of the tail, and their height from the floor to the top of the head or ears when sitting. Add a few inches to each for comfortable movement. As a rough guide:

• Small dogs (up to 10 lbs): most sling, backpack, and soft-sided carriers suit dogs this size, and many will fit under an airplane seat.
• Medium dogs (10 to 25 lbs): look for a larger soft-sided or structured carrier, and check weight limits carefully.
• Large dogs (25 lbs and up): most carriers won't be practical. A secured crate or a car harness is usually the better option for bigger breeds.

Always check the manufacturer's stated weight limit as well as the internal dimensions. Two carriers with the same outer size can have very different amounts of usable room inside.

Types of Dog Carriers

There are a few main styles, and each one suits different situations.

Soft-sided carriers are lightweight and flexible, which makes them easy to carry and store. I find them useful for short trips or car rides where you don't need something too structured.

Hard carriers are more solid and protective. They hold their shape well and feel more secure, especially for longer journeys or situations where stability matters.

Backpack carriers are great for dogs that can't walk long distances but still want to come along. They free up your hands and are surprisingly practical for busy days or outdoor trips.

Sling carriers are simple and easy to use, especially for smaller dogs. They're not ideal for long periods, but they work well for quick outings.

If you plan to fly, an airline-approved carrier is a must. Each airline has specific requirements, so it's always worth checking before you buy. Our full guide to traveling with a dog covers cabin and cargo rules in detail.

Comfort Makes a Big Difference

A carrier might look good, but if it's not comfortable, your dog won't settle.

Padding on the base helps more than you might expect. It gives your dog a place to rest without feeling every movement underneath.

Ventilation is another key factor. Mesh panels allow airflow and also let your dog see out, which can make them feel less confined.

The interior matters too. Soft materials and a stable base can turn the carrier into something that feels more like a safe spot rather than just a container.

Safety Comes First

This is where I tend to be a bit more particular.

Zippers should feel strong and secure, not loose or easy to push open. A weak closure is something you don't want to deal with mid-trip.

Harness clips. Some carriers include clips that attach to your dog's harness. I always use these when available, especially if my dog is likely to move around. If your carrier doesn't have one, our dog harness buying guide can help you find a compatible one.

Car security. If you're using the carrier in the car, it should be easy to secure with a seatbelt. For hard carriers, I check that the door locks properly and doesn't shift when handled. It's the kind of thing you don't notice until it matters, so it's worth getting right from the start.

Think About How You'll Use It

I've found it helps to picture real situations before choosing.

If it's mostly for quick vet visits, something lightweight and easy to grab works best. For longer trips, I lean toward something more structured that gives my dog space to settle in.

If I know I'll be carrying it for a while, I look at straps and weight distribution. If it's going to sit at home most of the time, storage becomes more important. The more it fits into your routine, the more useful it actually becomes.

Easy Cleaning Matters More Than You Think

This is something I didn't consider at first, but it quickly became important. Dogs bring dirt, hair, and the occasional mess, and a carrier that's hard to clean won't stay fresh for long.

Removable liners make a big difference, and materials that wipe down easily save time and effort. I try to avoid anything that holds onto smells or stains too easily. It just makes life simpler in the long run.

Getting Your Dog Used to a Carrier

Even the best carrier won't work if your dog refuses to go near it.

I usually leave the carrier out at home for a while and let my dog explore it at her own pace. Sometimes I'll add a blanket or a treat to make it more inviting. Starting with short sessions helps: a few minutes at a time, then gradually building up.

The goal is to make it feel like a normal part of their space, not something that only appears before a trip.

Our full guide on introducing your dog to a carrier walks through the whole process.

Final Thoughts

A dog carrier is one of those things that becomes part of your routine without you noticing. The right one makes outings easier and keeps your dog comfortable along the way.

The wrong one tends to get ignored or avoided. I try to keep things simple now: focus on fit, comfort, and how it actually works in everyday life.

Most of the time, your dog will let you know pretty quickly if you've made the right choice.

FAQ

How do I choose the right size dog carrier?

Measure your dog's length from the base of the neck to the base of the tail, and their height from the floor to the top of the head when sitting.

Add a few inches to each measurement so your dog can stand, turn, and lie down comfortably. Always check the carrier's stated weight limit and internal dimensions, since outer size doesn't always reflect the usable space inside.

What type of dog carrier is best?

It depends on how you'll use it. Soft-sided carriers are best for short trips and car rides, hard carriers offer the most protection for longer journeys, backpacks free up your hands for outdoor adventures, and slings suit small dogs on quick outings. If you're flying, you'll need an airline-approved carrier that meets your specific airline's requirements.

What makes a dog carrier airline approved?

Airline-approved carriers must fit under the seat in front of you for cabin travel, with dimensions and weight limits set by each airline. They typically need secure closures, adequate ventilation on multiple sides, a leak-proof base, and enough room for your dog to stand and turn around. Requirements vary between airlines, so always confirm the exact specifications before booking and buying.

How do I get my dog used to a carrier?

Leave the carrier out at home and let your dog explore it at their own pace rather than forcing them in. Make it inviting with a familiar blanket and treats inside, and start with short sessions that gradually build up over days or weeks. The aim is for the carrier to feel like a normal, safe part of their space, not something that only appears right before a stressful trip.

Are dog carriers safe for car travel?

Yes, when used correctly. Choose a carrier that can be secured with a seatbelt, and for hard carriers make sure the door locks properly and the carrier doesn't shift when handled. Carriers with harness clip attachments add an extra layer of security. For larger dogs who won't fit a carrier, a crash-tested car harness or secured crate is the safer choice.

Ready to find the right one? If a crate suits your needs better, see our guide to the best dog crates, browse our best dog harnesses, or explore the Carriers & Travel directory for our favorite brands.

Pretty Fluffy is the ultimate lifestyle destination for dog lovers. Discover the best designer dog brands and emerging small pet businesses, the latest dog accessories, healthy dog treat recipes, dog training tips and more.T hank you for being part of our dog-loving community!