From Stella McCartney's classic tailoring to Alexander Wang's modern iterations, the blazer is a staple in any wardrobe and will take you from work to the weekend with sartorial ease. Worn with co-ordinating pants in a chic suiting look or thrown nonchalantly over the shoulders with a simple white t-shirt and denim, the blazer is an essential outerwear investment piece that will see you through many seasons to come.