I ordered this swimsuit for my 15 month old daughter for our beach vacation. It was perfect for frolicking in the sand and water at the beach but I wouldn't recommend it for swimming in a pool. It is 100% cotton. She did wear it in the pool one day and was shivering because of the material that it is made out of. The cotton, of course, absorbs more water unlike a regular swimsuit. I would definitely recommend it to my friends or family for beach outings. It is just too cute and was true to size. I ordered the size 12-18 months and my daughter is 15 months and weighs 22 lbs. It fit her perfect.