A walk with your dog should be a moment of connection and joy. The harness you choose plays a big role in your dog’s physical wellbeing and overall happiness. While every harness type has its place, the key is to find one that matches your dog’s body shape and allows natural movement.
What Science Says About Harness DesignA 2025 study involving 66 dogs found that harness design can significantly affect stride length, weight distribution between front and hind limbs, and shoulder movement angles. The results also showed that the impact varies depending on the dog’s breed and body type. The researchers concluded that the best harness is one that fits the dog’s anatomy, supports natural movement, and avoids restricting joint mobility (
PubMed).
This makes anatomically shaped harnesses — often Y-shaped or straight-front — a strong choice for many dogs, as they are designed to preserve freedom of movement while distributing pressure evenly.