I was just looking at a thread called "let’s see your crash pics" and I saw a couple that reminded me of a wonderful discovery I made... or rather that my brother got for me as a gift. One of the crash pictures had a quote next to it mentioning the pain of the dreaded NUT SLAP.
ANYWAY---> after my brother heard some of my complaints about the manly pain and my near seriousness of wearing a cup or something, he got me a pair of biker shorts.
They may not be the most comfortable things on the planet, but they still beat the mesh inserts in some swim wear or wearing "whity tighties", etc... OR the SHOCKING PAIN that can be felt by the future generation.
I wear them under my board shorts. They are a little hot a times, but I can take the board shorts off when in the boat to solve that problem.
To all the men out there who have experienced this problematic pain, I suggest trying a pair. I was skeptical at first, but now they are an essential part of my gear