Hands down the most flexible suit I have had. I don't know why this wetsuit isn't marketed more by ZQK, as this suit is the closest I have ever come to feeling like I am trunking it. It can let water in if you fall hard on your side which allows water to come in under the zip tie/side flap that you pull over your head. Mine made it through a season with normal wear and tear, but for the price you cannot beat it. Even the top tier suit that Quik makes doesn't touch this suit from a flexibility standpoint. Under 62 degrees and you will want more rubber.