I bought this suit for my CCCAA states meet because of the reviews I've heard about the thigh compression this thing had and I can confidently say it did not disappoint. I swam the 2IM, 4IM, and 2bk (all scy) so I really needed some extra help in the leg department. I wore other suits like the arena glide and speedo intent during prelims and felt my legs gassing by the end of each race but when I had this suit on for finals, it was a game changer. In no other suit could I manage holding underwaters past the halfway mark on every wall like I did in the Mizuno. Genuinely made underwater dolphin kicks effortless. Would highly recommend for underwater heavy events (IM/fly/bk). Also the sizing chart was difficult to figure out so for what it's worth, I'm a 25 arena, 24 speedo, and the size medium mizuno fit perfectly.