The callaway 14 zip wool mix slipover is made from a quality wool mix giving you the benefit of wool and the durability of synthetic fibres featuring a fashionable 14 zip the slipover is ideal for golfers that prefer the comfort and freedom through the golf swing incorporating callaways opti therm fabric providing added warmth the callaway 14 zip wool mix slipover is embroidered with the callaway tour logo on the rear of the neck