Instruct: Classify a given review into positive or negative sentiment.
Query: Great panties

Years ago, my mother bought these as my first "grown-up" pair of underwear. To this day, I am still buying them.The fit is great. No saggy butt, no riding up. True to size. They can cause panty-line, so be careful. The crotch is cotton. They are sexy, but not provocative. Simple and very effective!