If you appreciate relaxed dressing, try pairing a grey herringbone wool blazer with navy jeans. Jazz up this ensemble with more casual shoes, like this pair of multi colored print canvas low top sneakers. As you can see here, it's extremely easy to look seriously stylish and stay cozy when cooler days are here, all thanks to ensembles like this. Those who wonder how to rock edgy casual style as you step into your 30s, you have your answer.