If you are looking for a suit with the warmth you need to charge frigid conditions while also maintaining an insane amount of flexibility, than look no further. The entire Hyperfreak line pushes the limits on what flexibility can mean in a wetsuit. And, while you may think the TB3 technology would only shine in thinner suits (2m spring suit, 3/2 full, etc.) it works in the same way at the 5/4+ thickness as well. I have owned 3/2's from other brands over the years that are substantially less flexible than the 5/4+ Hyperfreak and feel much more cumbersome, even though there is less rubber. The only drawback to this suit and the Hyperfreak line in general, is that you have to be very careful around velcro and you do really need to "take care of it" (rinse with freshwater, etc.). The TB3 material, which is the heart of what makes this suit so flexible, can catch on velcro very easily, and start to "pill", and pull away from the neoprene, leading to premature tears/loss in warmth. Bottom line--don't throw an uncuffed leash, un "velcroed" booties, etc. into a pile with your suit, and you will be just fine. My first Hyperfreak is still going strong after 3 seasons, so if you take care of it, it will last. Even if you aren't in the market for a 5/4+, I would still highly recommend trying one of the suits from the line and you will be blown away by how comfortable, flexible and warm it is.
