It's easy to catch the elegant look with a tweed blazer. Everyone has one of these jackets in their wardrobes. A vintage one from mom or sister is more preferred. Matching it with a funky handknitted hat like in the photo or with a yellow shirt and socks would give it a younger look. Please don't forget to wear it with a classical V-neck if possible a herringbone sweater. It will give it a real British style.