Such must-haves as a navy shawl cardigan and navy jeans are the perfect way to infuse effortless cool into your casual styling collection. With shoes, go for something on the relaxed end of the spectrum by rounding off with a pair of white leather low top sneakers. So if you're on the lookout for an ensemble that's sharp but also totally season-appropriate, this is it. If you often wonder how to dress maturely but also look stylish, this ensemble is a practical example.