A grey field jacket and a hoodie are a combo that every fashion-savvy guy should have in his off-duty styling rotation. Complete your outfit with a pair of grey canvas slip-on sneakers and off you go looking killer. Keep this combo ready to go when spring comes, and rest assured, you'll save time brainstorming for a look on more than one occasion. Wondering how to nail casual looks well into your 30s? This combo is a practical example.