Such essentials as a charcoal shawl cardigan and navy jeans are the ideal way to introduce extra cool into your daily repertoire. If you need to instantly spruce up this outfit with one piece, complete your ensemble with a pair of burgundy leather brogue boots. It's is an excellent option when it comes to a kick-ass outfit that will take you from summer to fall. This combination demonstrates how to stay fashionable as you go into your 30s.