This is a cap from the Wonder Mountain Athletic Club. There is some pilling, but no noticeable stains. This is a used item. This nylon jet cap is from WONDER MOUNTAIN ATHLETIC CLUB, created for people who are "active" in their daily lives. This cap fits a wide range of activities, such as training at the gym, walking, yoga, and outdoor hobbies. It is the first headwear release from the popular brand "WMAC". The jet cap uses a nylon material that is cotton-like yet has a moderate sheen. The soft material makes it light and comfortable to wear. The water-repellent effect of the nylon material repels light rain, making it safe for active scenes as well as sudden changes in weather.