This pairing of a brown shawl cardigan and khaki corduroy chinos will add masculine essence to your look. Rounding off with white leather low top sneakers is a simple way to infuse a more laid-back vibe into your look. On not-so-bone-chilling days, you can wear a variation of this summer-to-fall outfit and look absolutely amazing. This getup demonstrates that as a 30-year-old, you have a wide array of outfit options.