Forest or Bottle Greens, like cargo shants, are a much more versatile option than I give them credit for. I mean, what else combines the formality of pants with the unrivaled comfort of not pants? Yeah, think about that for a second.
They (the greens, not the shants) tend to look best on “higher contrast” individuals, but if you work with the right shade I think it can be an option for most guys.
Pictures courtesy of The Armoury, The Windmill Club, & The Sartorialist

Band of Outsiders Oxford Shirt

Shipley & Halmos Cotton Shirt
Christopher Bastin before the Gant Rugger SS 2013 presentation.