Opt for a dark brown blazer and navy jeans for both on-trend and easy-to-achieve ensemble. Why not complement your outfit with a pair of dark brown suede chelsea boots for an extra dose of style? So if it's an extremely hot warm weather afternoon and you want to look seriously stylish without putting too much effort, this ensemble will do the job in no time flat. This combo demonstrates that staying fashionable as you go into your 30s is not particularly hard.