Balenciaga's navy-blue herringbone wool blazer is supremely sophisticated yet utterly modern – wear it just as easily with tailoring and brogues as with dark-wash jeans and trainers. It has a spacious fit that's honed with notch lapels and a double vent at the back, and secures with a double-breasted button fastening at the front. Multiple pockets inside and out give it a practical edge, while the navy-blue satin lining ensures a luxurious finish.