Fabric: High-quality blazers, suits, and tweed jackets are often made from natural fibers such as wool, silk, or linen. Check the fabric content label to ensure you're getting a good material. Construction: Look for well-constructed pieces with strong seams, good lining, and quality buttons.

Length: The bottom of the blazer should hit just above your hips; or, a long blazer can be slightly extended, creating a flattering shape. Arm Length: The sleeves should reach your wrist without being too long or too short; add some arm candy, and you're good to go.