What do you gents use for long treks in warm weather?
I don't make long treks in warm weather. The only warm weather hunting I do is early season doves, and I don't need anything but a belt shell bag/game bag combo for that. But, this is my favorite shoulder bag. I like it so much I went on a quest to find another a couple years ago. It ended successfully when a member of this board graciously gave me one of his.

They're no longer made, so I was thrilled to get another one just like it ................ but with a better strap.

SRH