I am looking to buy a 7mm wetsuit. The only dive shop in my area has one 7mm semi dry that is way above my price range.
I have been looking online, but am having a hard time choosing. I am considering the Henderson Thermoprene Pro but cannot find any customer reviews. Does anyone have input on this wetsuit? Or suggestions for another kind of 7mm?
You don't say what your budget is.
My thought is that a good 5mm can easily be warmer than a low quality 7mm. But, if your budget is not enough to buy a high quality suit, then you might have to replace some quality with quantity (of neoprene you're wearing).
I would much rather wear a high quality 5mm than a lower quality 7mm that gives me the same warmth.
I would also probably rather wear a 5mm and a hooded vest over it than just wear a 7mm.
I think the top models from Henderson, Bare, and ScubaPro are probably all comparable and which one is warmest for you will boil down to which company makes a suit that fits your individual figure the best.
The Henderson Thermaxx (w/Fire Fleece), Bare Reactive (w/Ultrawarmth, formerly aka Celliant), and ScubaPro EverFlex (w/DiamondSpan) are all super stretchy with excellent fleece-like linings to keep you warmer than other, lesser suits.
Waterproof also makes excellent wetsuits, but they seem to take a different approach. Their neoprene is less stretchy, so they offer more different sizes to ensure you can find one that fits well. Their neoprene being less stretchy means it also compresses less at depth - i.e. you lose less insulation at depth. The Waterproof fit, excellent construction, and excellent seals mean their suits can be quite warm as well. But, I don't think they have the same level of fleecy lining that those others do. However, I'm not really sure. Their 7mm claims a plush lining. I just don't know how it compares.
I have EverFlex suits and a Reactive and I dive regularly with people with Thermaxx suits. They all seem very comparable. My EverFlex suits are older and don't have the newest lining. My Reactive suit is brand new and it is WARM.
I think the Henderson Thermaxx is warmer than the Henderson you are looking at. But, the Thermaxx is not sold online anywhere. It is ONLY sold in actual stores. The SP and Bare suits are available online. But, I don't think they're any cheaper than what you'd pay in a store.