Why not marry a dark green zip sweater with a beige turtleneck? As well as super comfortable, both items look good when matched together. With footwear, go for something on the relaxed end of the spectrum and finish off your ensemble with a pair of dark green canvas high top sneakers. So if you're looking for a knockout getup that transitions easily into spring, this one fits the bill. Overall, a good example of casual style for gentlemen over 30.