For a casually classic menswear style, team a shirt jacket with a beige cable sweater — these items work beautifully together. Breathe a dose of sophistication into your outfit by finishing with dark brown leather loafers. Keep the autumn anxiety at bay in a neat look like this one. As a gent in his 30s, you probably want to start dressing with more class. If that's the case, combos like this prove useful as a source of inspiration.