One of the most popular ways for a man to style out a grey long sleeve shirt is to marry it with jeans in an off-duty combination. To give your overall ensemble a sleeker feel, complement this outfit with a pair of navy leather double monks. Needless to say, it's easier to work through a super hot warm weather day in a summery combination like this one. If you're not sure how to dress your age at 60 and beyond, this combo is a good illustration.