When you step onto the course wearing the Callaway Opti Stretch Classic Pants you experience a whole new level of performance optimization comfort and style for the best round youve ever had. Featuring four-way stretch fabric and UPF sun protection these pants deliver enhanced mobility and freedom on the course. Four-way stretch fabric delivers a wider range of motion. Moisture-wicking technology improves sweat management. UPF sun protection blocks harmful UV A and B rays. Flexible waistband for added comfort. 95% polyester/5% spandex. Imported.