Mens Callaway Golf Crew Neck Baselayer Top. A long sleeve, crew neck baselayer top that's ideal for enhanced protection. - Swing Tech technology which provides noticeably less restriction and more stretch to maximise the range of motion on every swing - Opti-Dri moisture management system will keep you fresh and dry throughout your round - Chevron logo on the right sleeve - 100% Polyester - Fitted - CGKSD0M8 Callaway Golf Crew Neck Baselayer