Ok, I recognize that the reason for the mesh lining in swim trunks is to keep "frank and beans" (as they are affectionately referred to in our house) from chafing or escaping or something. However, for my guy they act as nothing more than a sieve. He spends a lot of time cavorting on the bottom of the lake and yesterday when he emerged, there was a full quarter cup of gravel in the bottom of the mesh portion of the trunks! All the finer particles had washed out and he was left with something you could use on a walkway. Can you say uncomfortable? Ick!
I have removed the offending mesh with my trusty Fiskars and my boy is now swimming commando style with the fishies! Life is good.

(Safety day at the beach)