Demonstrate your credentials in menswear styling in this casual pairing of an olive military jacket and black jeans. To bring an air of stylish nonchalance to this look, add a pair of grey suede low top sneakers to your ensemble. When it comes to dressing for fall, nothing beats a kick-ass ensemble that can take you from season to season. When it comes to casualwear for 30-year-olds, this combo looks great on most gentlemen.