My daughter indicated that it is a tight fight, but that it suppose to be that way. She attributes her 2 - 3 second drop in time to the suit.
It is a good swimsuit.  I read various reviews on this, some say its high in the front, really tight and is a good fit for curvey girls.  It''s all true.  I would suggest that if your 10 year old is the average kid, go with the smaller size.  Mine is a tall girl, with curves and it fits perfectly and she is only ten - not average.

Exactly what I wanted

Loved the new suit .. note buy the body glide stick for the rubbing at the shoulder blades.

I bought this suit right before the storm, so it took a while to come, but it got here before my meet! One problem is that it goes really high on your chest. I read that other people said that, but it actually does. It goes up to my neck... I got it in black because I heard the other colors became see-through after one or two races. Overall, it is a great suit if its your first fastskin!

I love how this suit feels and looks.   gives nice compression. New ones are  great for competition.  but i wear the older suits for training too.  It gives a small busted person just enough support

My daughter loves the suit but we needed to order a size smaller than normal.  These suits are meant to be tight and her regular size fit like a normal suit.  Swim Outlet was great about rushing out a smaller suit in order for her to have it for her conference meet.