A white long sleeve shirt and navy linen chinos are wonderful menswear must-haves that will integrate wonderfully within your off-duty lineup. To give your overall ensemble a more laid-back vibe, complete this look with a pair of black leather sandals. A neat combination like this one is just what you need on a baking hot summer day. This outfit is a great inspiration to anyone who wasn't sure about wearing casual outfits as an over-50 guy.