All of the thermal suits that I looked for children only go up to 9/10. But what can I buy if my daugther is a preteen? So after I contact the customer support they advised me to try a spring suit for her , an "O''Neill Women''s Bahia S/S Spring Wetsuit". This swimsuit its like a wetsuit but with shorter legs and sleeves. I bought one for my daugther for the winter season and after one hour and half in the pool, she was so happy with it because this swimsuit kept her a warm body. It works like a Thermaguard suit. Thanks to the Customer Service Team for help, it was a really good choice !!!

My wife has never owned a wetsuit and needs one if she's truly going to enjoy sailing and swimming in the spring-fed lake where we live.

After  she put it on backward and complained about the odd fit (and after my son and I stopped laughing), she turned the suit around and found it to be amazingly snug and comfortable.