Fashionable and practical, this casual pairing of a beige hoodie and a grey plaid long sleeve shirt will provide you with variety. And if you need to instantly dress down this ensemble with a pair of shoes, complement this look with a pair of tan athletic shoes. As the weather begins to warm up again, it's time to get rid of those heavy winter layers and choose something lighter, like this ensemble here. When it comes to casual style tips for 30-year-old guys, this combo looks nice on most gents.