Purchased in 2019. Worn only once with my first child because it restricted movement. Wore it about 5 times during the day with my second child. I think it's clean with no noticeable stains. There is no instruction manual, but you can find how to use it on the internet and YouTube. I purchased it at the obstetrics and gynecology clinic where I gave birth, so it is genuine. Please consider purchasing at this price.