High performing short sleeve polo shirt from Calvin Klein Golf Made from the innovative smarttec fabric. The lightweight and breathable fabric ensures that playing in this polo is a breeze. Also with this fabric technology comes UPF 30 sun protection layering that effectively shields your body from the sun's uv rays better than the average fabric. Since its inception, Calvin Klein has led the market by offering consumers cutting-edge design, innovative fabrics and exceptional fit and quality. Calvin Klein Golf continues to evolve its reputation as the brand of choice for consumers who want sexy, fashionable and performance golf apparel.