Go for a simple yet cool and casual option by teaming a navy crew-neck t-shirt and blue jeans. For a more elegant aesthetic, complement your look with a pair of white canvas derby shoes. This combination is a goofproof option if you're on the lookout for a great, summer-appropriate combination. As you can see, in your mid-20s your dressing options are looking great.
Demonstrate that no-one does casual like you in a navy crew-neck t-shirt and blue jeans. The whole look comes together really well when you complement this look with a pair of white and black leather low top sneakers. Needless to say, you're looking at a nice pick for a baking hot summertime afternoon. This combo proves that in your early 20s, you have a wide array of sartorial options.