I am so happy to see women's body armour! I purchased both the small and medium because I wasn't too sure about the fit, but went with the small. (I am 5'4", around 125 lbs) I took one spill riding the Bobsled trail in Utah and I didn't even feel it on my knees. Not a scratch or bruise the next day. Also they are comfortable to wear on longer rides for leg armour and not too hot.