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I am a diver, yet I always rent my wetsuits. I have been thinking of making an investment recently, but I haven't gotten around to it, as in Belgium you need some different thicknesses: 7mm (for sure, even two perhaps), 3mm for indoor and on trips, a warm undersuit for the body, etc.

I am living in San Sebastian for 2 months, and I would love to buy a triahlon swimsuit 2mm (like this one) or 3-4mm (like this one) to be able to go out for longer swims in the ocean. I can't swim with a diving suit I suppose, because of the inflexible arms, and I am considering doing triathlons for fun. Not sure which one would be confortable with water temps around 16 degrees C.

Would I also be able to wear the triathlon suit to go diving? Or do they have significant changes that I am not aware of? I guess they are less insolating around the flexible parts, would that be a problem?

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Update, I just read somewhere that a tri suit will rip faster. That might be a good point. I guess I won't be able to swim decently in a scuba suit. I guess both are in order... –  dorien May 5 '14 at 18:09
When you say 'will rip faster' - what do you mean. The lifespan of these things is pretty good. –  Rory Alsop May 6 '14 at 16:26
I meant when you put on a heavy BCD, lead belt and a tank on your back. I could be wrong, but that might be a possible difference. The outside feels different. –  dorien May 6 '14 at 16:40
Ahh - I understand. Yes - they construction of a triathlon suit is definitely not designed for that sort of load/wear –  Rory Alsop May 6 '14 at 16:50
Also some tris have restrictions on the kind of suits you can wear. –  Val May 12 '14 at 17:03

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