Callaway 14 zip lined merino windstopper jumpermade with the merino mixed yarn this callaway lined jumper has been designed for you to perform even when the colder weather sets in on the coursethe merino 14 zip with windstopper technology will keep you comfortably warm and dry with water repellency and a tefflon finishthe jumper is also designed with inner lining to ensure the wind stays away featuresbull callaway opti therm fabrics are designed to withstand the cold and provide a