Why not marry a dark brown long sleeve shirt with a henley shirt? As well as super comfortable, these two pieces look nice worn together. Brown leather casual boots will bring an extra dose of class to an otherwise all-too-common look. Relaxed combinations for stylish gentlemen over 30 aren't actually that hard, as you see.
This pairing of a dark brown long sleeve shirt and a henley shirt is a safe and very fashionable bet. Why not take a sleeker approach with shoes and complement your ensemble with a pair of brown suede casual boots? Perfect if you're on the hunt for some amazingly inspiring style for 30-something Millennial gentlemen.