I bought this a few years ago and wore it a few times on mountain trips, but it's been sitting in my closet ever since. It's a beautiful color. Please refrain from purchasing if you are sensitive to used items. Product Description: A mix of the appeal of natural bamboo fiber and polyester synthetic fiber. A simple and tough trail shirt that fits seamlessly into your mountain adventures and everyday life. The fabric, a blend of bamboo (which has moisture absorption and deodorizing properties similar to wool) and polyester, has a smooth feel. The shirt's wind resistance and natural moisture-regulating function maintain a comfortable feel at all times. The wide fit and open collar, which prevents heat from building up around the neck, keep you from overheating even when it's hot. You can quickly open the front with the snap buttons, quickly roll up the sleeves, or raise the collar and fasten the buttons when it's cold, allowing you to freely control wind resistance and body temperature.