This casually cool look is super straightforward: a dark green long sleeve shirt and jeans. Why not introduce a pair of black suede chelsea boots to this look for an extra touch of polish? When you're having one of those dreary fall days, sometimes only a cool ensemble like this one can get you out the door in the morning. Gents who are curious how to sport edgy off-duty style as you pass the big 3-0, you have your answer.