I haven''t worn it in the water yet, but tried it on when it arrived. It does fit snug so I recommend ordering a size larger than normal. I am always a small or medium, and this large is definitely not large. I like the fitted look and that it doesn''t have that mock turtleneck type of collar that other rash guards do.

This shirt is way too small to be called size large. It was the same size as another shirt I ordered at the same time for my daughter in size small.

This shirt would fit a child. I ordered large just to be sure. It's too tight to do anything in. I will be returning it.

Fits snug as it should.

Just received my order today - I had ordered a Rashguard for myself and my daughter.  It took 13 business days to arrive.  This rashguard feels comfortable on - fitted but room to move! I am 5'7" and ordered a Large size.  The size was what I was hoping for. (One never knows when ordering online)  I have just ordered 2 more rashguards - one for my daughter and the other for my son.  Both of those are O'Neil with long sleeves.   Looking forward to receiving them in a timely fashion as well!

I use this for indoor swimming. It is lightweight but keeps me warm enough. It fits snug but not tight...able to move freely. I am 5'4", 132 lbs. and the small fits perfect.