Revised with a smaller core, Duo Optix now packs more distance than ever before with bolder, brighter matte colors you can't miss. Now get 3 dozen for the price of 2. A soft, high resilience polybutadiene core provides exceptional feel and straighter flight off the tee. Semi-translucent high visibility cover allows you to easily track the ball in flight or locate it quickly in all types of ground cover. The matte finish paint helps minimize sun glare off the ball at address too. The DUO family of golf balls has been engineered to deliver the distance you need, the feel you love and the consistency you demand.