Your dog should be just as comfortable as you are when you are out for a stroll. Picking out a collar or harness for your pet can be confusing if you are not sure which to buy. It depends on your dog as to what you get for your walks. Here are some tips to help you decide.
Dogs that like to pull may need something that will help stop them from tearing your arm out when walking. I think that collars with spikes or choke collars are brutal but it is also cruel to let your dog pull your arm until it hurts. Obedience is the best way to control your dog so if your pet pulls uncontrollable you may want to consider obedience training.
A collar is great if you are training your dog to do tricks or maneuvers since it is less cumbersome and allows for more mobility. It should be loose fitting so that you can put two fingers into it comfortably. Collars can constrict air passages and even choke some smaller pets so for just walking you may want to go with a harness.
Harnesses are better for just taking a stroll. Unlike a collar it allows movement without constricting breathing. However you may need to be concerned about chaffing around the legs since an ill fitting harness can rub and cause abrasions. The material should be a soft fabric like nylon or cotton so that it is not rough and scratchy and it should fit properly and not too tightly.
There may be times when you want to be able to put a leash on or off quickly. A harness takes more time to put on then a collar so if you find you want to be more mobile you may want to use the later. Consider this if you like to take quick trips or short walks.
Fashion may be important to you and if so a harness is more fashionable then the plain old collar. Harnesses come in a variety of colors and materials. They cover the canine more so they add more variety to their appearance.
How you exercise your dog is personal. You know what needs are desired and what the terrain is like where you do your walking. If your canine friend has breathing problems then a harness will keep the throat clear and if you need a quick release and attachment of the leash a collar may be better.