A white print long sleeve shirt and jeans are a casual street style combination that every modern gent should have in his casual wardrobe. Why not add a pair of olive athletic shoes to the mix for a dash of stylish casualness? Think it's hard for 40-year-old men to master cool off-duty style? This combination is indisputable proof of otherwise.
A navy v-neck t-shirt and jeans will introduce serious style into your current casual lineup. For something more on the casual and cool side to finish this outfit, slip into olive athletic shoes. Just because you've passed the big four-oh, doesn't mean you're allowed to give up on your personal style, and this getup demonstrates just that.