A blazer is a tailored jacket, usually with lapels and a structured shoulder. It looks like a suit jacket but is not part of a suit. That distinction matters. A suit jacket matches its trousers exactly. A blazer stands alone and pairs with contrasting trousers, jeans, or a skirt. It sits in the smart-casual space between formal and relaxed.

The blazer began in the 19th century as a boating or club jacket, worn by rowing clubs and gentlemen's societies. Each club had its own colors and buttons. Over time, the garment moved into general wardrobes. Today it comes in navy, grey, black, and a range of colors and patterns. Wool, cotton, linen, and blends are common fabrics. The cut varies from slim to relaxed, single-breasted to double.

A good blazer is one of the most versatile pieces in a wardrobe. Worn with a shirt and tie, it reads professional. With a t-shirt and jeans, it reads casual but polished. With a dress, it adds structure. The fit is everything. Shoulders should sit cleanly, sleeves should end at the wrist bone, and the jacket should button without pulling. A cheap blazer that fits well beats an expensive one that does not.

Key features

• Lapels
• Structured shoulders
• Buttons and vents
• Patch or flap pockets
• Lining and canvassing