An open cardigan and a hoodie are amazing menswear staples that will integrate nicely within your day-to-day lineup. For something more on the relaxed end to finish off your ensemble, opt for black and white athletic shoes. Perfect if you're after some incredibly inspiring style for 30-something guys.
Try teaming an open cardigan with a hoodie if you're on the hunt for an outfit option for when you want to look cool and casual. Get a bit experimental when it comes to shoes and polish up your outfit with a pair of brown leather desert boots. This combo proves that turning 30 is no reason to avoid casual clothing.