A grey denim jacket and beige jeans will infuse your day-to-day wardrobe this neat and relaxed vibe. Complement this ensemble with a pair of grey athletic shoes to bring a dose of stylish nonchalance to your look. So as you can see, it's extremely easy to look awesome and stay toasty come cooler weather, thanks to this outfit. This combination illustrates how 20-year-old men wow in the fashion department.