cold water exposure suit debate

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i been looking at dry suits but not sure whether or not ill get enough use for the cost
I don't want to repeat the good advice of others here, but I'm interested in this statement. Can you better describe "enough use"? How much cold water diving do you imagine yourself doing? How frequently do you anticipate doing more than one dive in a day?
 
i first started looking at semi dry wet suits but the local dive shop says they wont even sell them as the people up here who have bought quickly realised they didnt work well as claimed ,now i been looking at dry suits but not sure whether or not ill get enough use for the cost

I dove a henderson semi dry and liked it - not sure why your LDS is steering you away. I would try to find others in your area that may use semi drys or find another shop that sells them and ask if you can get any referrals that you can talk with...
I dive a dry suit now but it is expensive and if you even think you may not get enough dives in - do your self a favor and find out more about the semi dry in your area. Your current LDS is not going to help you but you can go around them to validate your thoughts or their opinion of the suits. It may be worth the effort... :)
 
It's been awhile since I've worn a farmer john 7mm, but if comfort dictates that much rubber where you dive, I'd say it's probably a toss up. You'll certainly have the option to stay warmer in the drysuit, but you may well still have lesser mobility and more drag with the drysuit. With enough effort and expense - research, trial and error, custom fitting - you have some control over those negatives as well. I hated the bulk of the old 7mm farmer john but I still recall it being better than my off the rack uncompressed 7mm neoprene drysuit. For warmth the two were not even close, especially once I found out about the 12mm drysuit hoods from Otter Bay!

One negative aspect of drysuit diving I don't often see discussed is control of over-heating during the surface intervals, especially leading up to the first dive. Down here we have water temps that are often 50F or even a little lower, coupled with air temps that can range into the 70s or higher, often with intense sunlight. After switching to drysuit diving, this became a vastly more serious consideration for me. I find it a critical challenge to manage comfortable body temperature once I've got the suit even partially donned. Lack of shade, a long walk to the shore, or even sitting in the sun on a boat, result in a real risk of extreme distress. With the uncompressed neoprene suit I wear only a thin liner and find that with the suit down around my waist, I have some ability to manage comfort for a short period of time in the heat. When I tried a White's shell suit which necessitated two layers of heavy fleece, I was literally on the verge of passing out by the time I got the undergarments fully on, then the suit, then the rig, and into the water. If I dove where air temps were reliably much cooler, it would be a different matter. At any rate, that aspect of difference even between two styles of drysuit was driven home dramatically.

In conditions where I'd probably stroke out, I see folks walking around the parking lot, drysuits fully zipped up, while shuttling their gear from car to boat, apparently perfectly happy, so I'm also left to conclude this is an issue that varies a lot among individuals. I see the same wide comfort range on the ski slopes, and occupy a similar spot at the extreme.

When I can, I still prefer the wetsuit for the much lesser drag and greater limb mobility, and simpler management above and below the water. For slower paced dives, I've made the concession on those counts for the vastly preferable comfort level.
 
thanks for all the feedback .a lot of great points ,right now i am planning to dive in the Caribbean in January for 6 dives that ill wear my 3 mm shorty and plan to go warm for a week hopefully every year but i would like to do some summer dives here as well .like i said im fairly new so i honestly dont know how much as of yet so to put a huge expense into a dry suit is my debate i am leaning that way and hopefully find a good used that will fit me to start
 
If you don't know how much diving you'll do locally and not sure if a drysuit is what you want, then rent a drysuit for the first few local dives. You might be able to try out different styles and can compare to diving with the wetsuit to learn what you want to spend your money on.
That's what I did for the first 5 or so local dives after getting certified. I got drysuit certified at the same time as OW and rented. After that I tried a couple different styles and was really confident that I wanted to buy my own drysuit and of the style and features to get.
 
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Use a mere base layer thermal, no need for heavy thermals most of the time. Coldest temp for me was 16C. I stay as long as my air would last in my tank (per dive plan, etc.). I don't end my dive because of thermal issues. I find it easier to do a surface swim with it than a shell drysuit (I do mostly diving from shore). It feels almost like a regular wetsuit.

NOTE: I gave the wrong link in my post above. I corrected it.

www.scubapro.com/en-US/USA/divewear/dry-suits/products/everdry4.aspx
 
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The description doesn't make the claim that it stays dry - do you find it does? I see there is also a hooded 7mm version.
 
A semi dry suit does not keep you dry - hence the semi... What it does is restrict the water movement through the cuffs on the neck, wrist and ankles. That restriction does keep you "relatively" dry - but it is not a dry suit - do not confuse the two... You can pee in your semi-dry if you so choose but I would not pee in my drysuit... :)
 
https://www.shearwater.com/products/peregrine/

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