Part of Our Core Collection: core golf layering and other golf tops that every active man needs in his closet. Mix and match our core tops with any pieces across the Callaway Men''s collections for a fresh outfit that''ll fit your needs. Where/how to wear: On the course with your favorite golf clubs or even just to make a quick run to the store. These premium fabrics switch seamlessly between active wear and men''s casual fashion in a cinch. Pair this men''s polo golf shirt with a Callaway Men''s Opti-Stretch Golf Performance Expandable Waist Pants to complete the look. Technical Features: Opti-Repel: resist mind and water creating a barrier of protection against inclement weather Opti-Sheild: creates a layer of protection the sun''s harmful rays Who wears Callaway?: Callaway Men''s golf apparel is for the pros -- and for those that are on their way there. Featuring some of the most technology charged, performance focused fabrics in golf wear, Callaway Men''s polos, tops and bottoms want to give you the best fit, comfort and feel to take your game to the next level.