A white crew-neck t-shirt and white sweatpants are bona fide must-haves if you're putting together an off-duty closet that holds to the highest fashion standards. To add a fun touch to this getup, add black leather sandals to the equation. Keep this combo in mind come spring, and we promise you'll save a ton of time racking your brain for an outfit on more than one morning. Interested in outfit ideas for teenagers? This ensemble is pretty inspiring.