Explore endless adventure in the Columbia Chill River Short Sleeve Shirt that adds fun to any day. Crew neckline, short sleeve design and straight hemline offer a classic touch to this spectacular shirt. Regular Fit is an easy, lightly relaxed fit for comfortable range of motion. Omni-Shade UPF 50 fabrication protects skin by blocking harmful Ultraviolet A B rays (UVA/UVB). Omni-Wick fabric: â¢ Moisture-wicking fabric moves perspiration away from the skin to dry quickly on the surface. â¢ Four-way stretch for improved range of motion. Omni-Freeze sweat-activated cooling technology lowers the temperature of the fabric, while the shirt's wicking power further keeps you dry. 89% polyester, 11% elastane. Machine wash, tumble dry. Imported. Measurements: Length: 25 in Product measurements were taken using size XS. Please note that measurements may vary by size.