What do customers pay most attention to when buying a dog harness?

Proper fit is crucial for a dog's comfort and safety. An ill-fitting harness can lead to chafing, escape attempts, and decreased control for the owner.

The harness material should be durable, comfortable, and suitable for the intended environment. 

For example, nylon is commonly used for its durability, while mesh is favored for its breathability.

Quality stitching and construction ensure the harness will hold up over time, especially for more active or larger dogs.

Adjustable straps allow for a better fit, especially for growing puppies or dogs that are between sizes. This ensures that the harness can be snug without being restrictive.

Reflective strips or stitching can increase visibility during low-light situations.

Dual attachment points (for the leash) can offer better control, especially for dogs that pull.

How easy it is to put on and take off the harness can be a significant factor, especially for less cooperative dogs or for people with mobility issues. 

Quick-release buckles and step-in designs can be beneficial in these cases.

Some owners prioritize the appearance of the harness, seeking out specific colors, patterns, or stylish designs.

Affordability is a consideration, though it's balanced against other factors. A cheaper harness that doesn't fit or isn't durable isn't a good deal in the long run.

Many customers look at online reviews or seek recommendations from fellow dog owners, trainers, or vets. Positive feedback about a particular harness can significantly influence purchasing decisions.

Whether the harness is for daily walks, training, hiking, or car rides can influence the choice. Some specialized harnesses are designed with specific activities in mind.

Padding, breathable materials, or ergonomically designed shapes can ensure the dog remains comfortable, especially during extended wear.