This original design is excellent for front and side visibility. If your horse has a high head carriage while out hacking we would advise you to wear a neck band as the horses head may hide your jacket or waistcoat from cars coming from the front. It is fully adjustable by velcro underneath the chest and is easy to wipe clean. It comes in ONE SIZE, but is adjustable around the neck and adjustable in between the legs, fits from a 11.2 hns up to a 17.2hns.