How to choose the right harness for a dog: a step-by-step guide
Choosing the right harness is not just a matter of style: it is a decision that directly affects your dog's health, comfort, and safety during every walk. In this guide, we explain the factors to consider before buying, so you get it right the first time.
Why is a harness often better than a collar?
More and more veterinarians and trainers are recommending harnesses over traditional collars, mainly because:
- It distributes pressure across the chest and back, rather than concentrating it on the neck and trachea
- It reduces the risk of cervical injuries, especially in dogs that pull on the leash
- It is safer for brachycephalic breeds (bulldogs, pugs, boxers) with sensitive airways
- It offers better control without choking or frightening the dog during the walk
That said, not all harnesses are created equal. Choosing one that is poorly designed or the wrong size can lead to the same problems you are trying to avoid.
Key factors for choosing the right harness
1. Your dog's size and breed
The first step is to measure your dog correctly:
- Chest girth: measure around the widest part of the chest, just behind the front legs
- Neck girth: measure the base of the neck, where a collar would normally sit
- Weight: useful as a reference, but never as the only measurement
| Dog size | Approx. weight | Approx. chest girth |
|---|---|---|
| Small (Chihuahua, Yorkshire) | Up to 10 kg | 30–40 cm |
| Medium (Beagle, Cocker) | 10–25 kg | 45–60 cm |
| Large (Labrador, German Shepherd) | 25–40 kg | 60–80 cm |
| Giant (Saint Bernard, Great Dane) | +40 kg | 80 cm or more |
Tip: if your dog is between two sizes, always choose the larger one and adjust it with the regulating straps.
2. Ergonomic design
A good ergonomic harness should allow for natural movement of the front legs without restricting their stride. Look for models with:
- An "H" or "Y" shape on the chest, which does not block the shoulder joint
- Padding in contact areas (chest and armpits) to prevent chafing
- Breathable materials, ideal for long walks or warm climates
Avoid harnesses with a tight "X" design or rigid models that press directly on the sternum and limit movement.
A good example of this type of design is our breathable mesh harness with leash, fully breathable and padded, designed to keep your dog cool and comfortable even on long walks or hot days.
3. Attachment point: chest, back, or both
- Back attachment: comfortable for calm dogs that do not pull on the leash
- Chest attachment: helps correct pulling, as it redirects the dog toward you
- Double attachment (chest and back): the most versatile option, ideal for training and daily walks
If your dog is learning to walk without pulling, a harness with a front or double attachment can make the process much easier.
4. Ease of putting it on and taking it off
"Step-in" harnesses (where the dog puts their paws through) are usually harder to put on nervous or older dogs. Models with clip or velcro closures on the back are faster and less stressful for the dog. If you are looking for that comfort combined with greater safety on night walks, our reflective step-in harness for dogs and cats is fully breathable and padded, in addition to having reflective details so your pet is visible even at dusk.
5. Activity and lifestyle
Think about how you will use the harness:
- Daily city walks: prioritize comfort and lightness
- Hiking or intense activities: look for reinforcements, a top grab handle, and durable materials
- Growing puppies: choose models that are adjustable at several points, as you will need to adapt it over time. Our harness and leash set for puppies and cats is an excellent option to start with, as it is fully breathable and padded, ideal for young and sensitive skin
How to tell if the harness fits correctly
A proper fit is as important as the design. To check it:
- You should be able to fit two flat fingers between the harness and the dog's body, with no slack or excessive pressure
- The harness should not rub or hinder the movement of the front legs
- It should not slide to the sides or rotate while the dog is walking
- Check the fit every few weeks, especially in growing puppies
Common mistakes when choosing a harness
- Relying only on weight and not the dog's actual measurements
- Buying a harness that is too tight thinking it provides "better control"
- Not checking the fit over time, especially in puppies or dogs that gain or lose weight
- Choosing based on aesthetics rather than ergonomic design
Frequently asked questions
At what age can my puppy wear a harness? They can wear it as soon as they start going for walks, as long as the model is adjustable and lightweight. It is important to check the size every few weeks while they grow.
Does a harness make my dog pull more on the leash? Not necessarily. A harness with a front or double attachment can specifically help correct this behavior, redirecting the dog's movement toward you.
Can I leave the harness on all day? It is not recommended. Ideally, take it off when the dog is at home to prevent chafing and let the skin "breathe."
At Huellas Perfectas, we have ergonomic harnesses designed to adapt to every size and lifestyle. Explore our collection and find the perfect fit so that every walk is safe and comfortable.
