This off-duty pairing of an olive crew-neck sweater and black jeans takes on different forms according to the way you style it out. Ramp up the dressiness of your outfit a bit by rocking black leather casual boots. Semi-casual outfits for 20-somethings aren't actually that hard, as you see here.
If you're looking for a laid-back but also seriously stylish look, wear an olive crew-neck sweater with black jeans. If you need to easily level up your getup with a pair of shoes, why not complete this look with dark green suede chelsea boots? Those who wonder how to rock smart casual dressing as you navigate your 20s, you have your answer.