my daughter is 13, 4ft 5 inches tall and weighs 79 pounds, very petite all over. she is usually a 26 so we got a 24. fits perfectly. i would not recommend this suit for girls with a larger build but for smaller girls this suit is great. i got this suit for her for jr nationals and sr mets. she shaved off so much time in this suit. it is tight but really works. she shaved 2 seconds off in her 100 free and 200 fly, 4 seconds in her 200 free and 100 and 200 back. she broke her team record with a 51.08 in her 100 free, 1:50.87 in her 200 free, and 1:53.42 and 52.02 in the 200 and 100 back. she broke the meet record in the 200 fly with a 1:50.00. overall the suit was AWESOME!!! she has worn it to 4 meets since and it still looks brand new. Great suit overall!