I own that suminando shirt. It was the first item I bought there. As much as I like my Sugarcane workshirt, this is a whole other game. I wear it with loose fitting khakis or the pant I picked up there, mostly, because unless you're Steve Earle you shouldn't do the denim on denim thing, or so I understand. But I have thrown it over a pair of jeans and it works. It's the dark color and fabric that makes it work, it doesn't scream denim. I probably wouldn't've been inclined to try that with the indigo blue model.
Black shirts are essential to me. Whenever I see one I like, I buy it.
My companion bought an indigo shirt there. Lovely. Man, does it bleed, as do all their indigo items. We soaked that thing for hours to settle it down. Finally, it was safely wearable. Just be prepared.