This pairing of a beige long sleeve shirt and olive chinos embodies versatility and casual menswear style. Clueless about how to finish off? Finish off with grey athletic shoes for a more relaxed vibe. Needless to say, it's easier to work through a blazing hot hot weather day in a easy and breezy getup such as this one. Laid-back outfits for 20-something guys aren't actually that hard, as you see here.