https://www.columbia.com/p/mens-pfg-offshore-ii-board-shorts-1709001.html?dwvar_1709001_color=901
Board shorts for surfing, diving, swimming, etc.
https://www.columbia.com/p/mens-pfg-terminal-tackle-shorts-1653561.html?dwvar_1653561_color=319
Fishing shorts, dry quick, even comes with bottle...