I have a 4/3 mutant and it works great...very flexible, lightweight, and keeps you warm. The only complaint I have is getting it zipped up when you first buy it b/c it hasn't stretched out yet, but once you wear it a couple of times, it becomes easier... I would highly recommend it.
ya i've heard good things about the mutant im actually debatin whether to get the mutant or psycho 1 4/3 suit rit now...i know they are both equipped with mad good tech features one main difference tho is the interchangeable hood and short zip on the mutant
I have a 4/3 Mutant and its a great suit. I surf through the winter in it. However the hood piece is a pain as the zipper is constant hassle as previously stated. If I were doing it again I would get a Psych II (4/3) and use a sepereate hood.