This is great!  My daughter loves it.  I wish they had one just like this for older boys.  She can put it on and take it off with out help.  We use these for swimming lessons in a public pool.  She tells me that they do help to keep her warm.  I would reccomend this to anyone.

a comfortable suit/protects from sun also keeps my daughter warm when she swims

We bought the suit for our special needs child as a compression suit this item work well for this use

great product but the difference in size between the 2T and 3T seems too big.

My daughter is pretty skinny and gets very cold after several minutes in the pool, to the point where she didn't want to swim.  After purchasing this, she swam all day with no complaints!!  Fits perfectly, it's comfortable and a great overall quality.

This is a nice suit that provides some warmth but much less than a 3mm wet suit (it is sold as a "thermal suit" not a wet suit.  I would recommend it for swimming in a pool that is a couple of degrees cooler than ideal, otherwise, go for an actual wet suit since it wont keep a kid warm for an hour long swim team practice in a very cold pool).  That said, it maintains some body heat and does not mess up swimming technique as much as a real wet suit would.