If you enjoy a more laid-back approach to dressing up, why not make a white and red polo neck sweater and a crew-neck t-shirt your outfit choice? Why not take a more casual approach with footwear and complete this outfit with a pair of dark brown leather boat shoes? A good illustration of transitional fashion, this ensemble is ideal this spring. That's the style for a guy over 30 to convey you've got what it takes to succeed.