A blue denim jacket and black jeans are a cool combo worth having in your off-duty lineup. Casual combos for gents in their 30s aren't actually that hard, as you can see here.
Blue Denim Jacket with Black Jeans Casual Chill Weather Outfits For Men In Their 30s
This urban pairing of a blue denim jacket and black jeans is super easy to throw together without a second thought, helping you look awesome and prepared for anything without spending a ton of time going through your wardrobe. Make your outfit slightly more refined by finishing with a pair of black suede chelsea boots. Like this idea for your styling lineup as a 30-something Millennial gent?