Callaway are always striving to improve the products that they produce for golfers. Their new Chev Mulligan S golf shoe is an example of this. The shoe has leather uppers that are lightweight, breathable and have a waterproof coating. Your feet will always function at the correct temperature due to the Opti-vent mesh liner that is fitted within the shoe. This allows the feet to breathe and the temperature regulation properties ensure that your feet remain cool, dry and comfortable.