A sports jacket, made from sturdy fabric like tweed, is a versatile piece that can be dressed up or down. It's less formal with a relaxed fit and often features patterns. A blazer, more formal than a sports jacket but less than a suit jacket, traditionally comes in navy blue with metallic buttons. Modern blazers vary in colours and styles, typically solid coloured, made of lighter materials, and have a more fitted look. Both can be paired with different types of pants.