Why not try pairing a light blue short sleeve shirt with olive shorts? These pieces are totally comfortable and look amazing when paired together. If not sure as to what to wear in the footwear department, introduce a pair of black and white canvas low top sneakers to the mix. This combo is also great if you're on the lookout for summer wear to get through a boring day. Relaxed looks for 20-year-old gents aren't actually that hard, as you can see.