Why not wear a shirt jacket with beige shorts? As well as totally practical, both of these pieces look awesome matched together. And if you wish to immediately dress down your outfit with a pair of shoes, complement this ensemble with black and white low top sneakers. There are a ton of ways to look nice and live through the heatwave, and that's one of them. Relaxed casual looks for stylish teenagers aren't actually that hard, as you can see here.