I'm doing my first full-distance triathlon in July in the Northeast US. I have never worn a swimming wetsuit, let alone own one. I'm looking to buy one. How do I choose the right wetsuit? What factors should I be looking at? Can I do it online or do I have to find a local retailer and try it on in person? I'm assuming that it will be cool enough for a full-length wetsuit. I am finding a range of wetsuits on Amazon, and I like the fact that they provide free size exchanges.

Thanks in advance!
Shiran

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Pain is weakness leaving your body.