Layer a brown leather jacket over casual tops like T-shirts and button-downs or dress it up with formal wear. Match it with neutral colors like black or white for a classic look, or add pops of color with earthy tones like green or burgundy. Pair it with jeans or chinos for a casual vibe or elevate your outfit with a dress or skirt. Accessorize with scarves, jewelry, and boots or sneakers to complete the look.