I bought this suit and a longitude suit - similar in style. The hook is nearly impossible to do, but I have figured out how to hook it first, then put my head thru the opening. I got a 16 based on my hip measurements and it fits good there, but is large in the bust. Also, the elastic in the back part of the legs seems a bit loose. It tends to try to ride up over my butt cheeks - I don't have that problem with the other suit. It could become a problem if it stretches out. I use the suit to do water exercises at the pool and have worn it twice now. It fits good with the noted exceptions. I keep wondering if I could wear a 14 - I think it might fit better in the bust, but not sure if it would be too tight in the hip area. Overall, it's a nice suit - lovely colors - and good value for the price.