I ordered size small-Im 50, 125 lbs. Still too big! I bought this bodysuit to wear with an embroidered see-through lace dress. Id hoped the suit would be fitted. Instead it is too loose & too long around the waist. arms and lower legs. The turtle neck isn't snug enough either. Hopefully a washing will shrink it. Still recommend, but its definitely sewn for taller women and runs big.