Everyone knows that flyfishing holy garments sold at big box stores are an abomination and insult to our sacred salmonid quest.
Such garments, to be truly sanctified, must be only purchased at piscatorial outlets of authentic troutatorial rectitude and purity.....extra cost an emblem of your dedication and basic flyfishing decency.
Or...you could just buy stuff that keeps you cool, dry, warm, or whatever the season requires. It's not like any of this shit is made in Montana by Americans. You're far too cheap for that anyway. So am I.