This combo of a long sleeve shirt and a green crew-neck t-shirt is very easy to replicate and so comfortable to wear throughout the day as well! You could perhaps get a bit experimental with shoes and complement your outfit with a pair of black and white canvas high top sneakers. Needless to say, it's easier to work through a roasting hot afternoon in a cool ensemble like this. If you're often not sure how to dress in your late 20s, this pairing is a fail-safe option.