It looks cool

http://www.garymajdellsport.com/cate...ngs-Thongs.htm

Swim G-strings
 

Before she died, Dore Gabriel made some minimal-coverage g-string swimsuits for me. They are nylon spandex from material typically used for swimwear.

http://www.mensswimsuitboard.com/for...4&d=1501763334

http://www.mensswimsuitboard.com/for...5&d=1501763341

Went for a trip into the countryside this week to a waterfall, and swam in a G-string. It felt very comfortable to swim wearing almost nothing.
The location, being a weekday, was very quiet, but a couple spotted me as I was leaving the water. I was unconcerned, as under English law indecent exposure only refers to the genital area, and that was covered. :)