A dark green overcoat and a brown wool gilet married together are a match made in heaven for those who prefer casually neat looks. Brown suede low top sneakers will bring a mellow vibe to an otherwise all-too-safe look. When leaves turn yellow and red and autumn is in full swing, you'll appreciate how ideal this getup is for summer-to-fall weather. When it comes to fashion for 30-something guys, this look is ideal.