I purchased this a few years ago. I used it for hiking and town use rather than mountain climbing, but I didn't use it very often. If you fasten only the buttons without closing the zipper, it also functions as ventilation. The hood adjuster prevents cold air from entering on cold days, and the drawcord at the hem allows you to enjoy changes in silhouette. The outer fabric is 100% nylon with a vintage finish, giving it a cotton-like texture. It has excellent wind resistance, water repellency, and breathability, making it suitable for use in the mountains. Its functionality and appearance also make it recommended for wearing in the city or as an outerwear for the autumn to winter season when you feel a chill at night. The color is O22 Olive Gray (Olive Nezumi).