For an ensemble that's effortlessly sleek and envy-worthy, rock a navy polo neck sweater with beige shorts. If you want to effortlessly play down this outfit with one single piece, introduce flip flops to the equation. Come extremely hot sunny days you want to feel comfortable and on-trend –– this look is just the right one. This combo is a huge inspo to anyone who had doubts about sporting casual outfits as a mature gentleman.