I am 50, 5ft 2in, 100lbs and bought when I was 16 and 12-14 years old. 12-14 fit best. I was looking for gray jogging pants with pockets and a belt around the ankle. I found most women's sweaters to be too long and bulky, generally didn't fit my petite frame, and in many cases cost between $50 and $100. For me they lengthen a bit, but that doesn't matter. My iPhone X fits and stays in my pocket when I'm busy around the house. I would give an extra star if they were offered in Charcoal (darker) grey. we're a little thicker/fluffier and didn't have a little bow in the front but overall we can't beat the price and quality and I'm happy to find a pair of sweatpants to match.