Why not consider pairing a mustard shawl cardigan with jeans? As well as very comfortable, both items look awesome matched together. Want to dial it down when it comes to footwear? Add navy print canvas low top sneakers to the mix for the day. On not so cold days, you can work this summer-to-fall getup and look absolutely amazing. This outfit demonstrates that approaching your 30s is no reason to stop dressing casually.