I measured myself as 46″ around where I felt the top should be, and had my spouse help to confirm it (measure twice, buy one to start!). I ordered the XL in black.
Wearing it, there’s a sense of “airyness” you don’t get even with roomy cargo shorts. It is very comfortable, especially on warm summer days.

I took my spouse’s recommendation of wearing boxer briefs to prevent chafing, and I don’t regret it. And it looks good with combat boots, work boots, high tops or hiking boots.

I already ordered another pair but a size smaller and in grey. This could be the ultimate in comfortable summer wear!