“I have always had great luck with ordering Oneill wetsuits online, previously Psycho 1's. The Psycho 1 was not available this year, so I ordered the Hyperfreak instead. It seems like a 5/4, it is so thick and it is very tight in the shoulders and arms. I thought it would stretch out in the water, but it did not. It is constrictive while paddling and leaves stitch marks on the arms because it is so tight. I would definitely recommend trying it on in the store before buying it even if you bought one last year in the same size.”