Another classic, and something that’s been around since the early 1800s. It was first introduced to the masses when entrepreneur Levi Stauss began producing hardwearing clothing for miners. He later teamed up with a tailor, and the world of Levi’s began. Since then denim has evolved hugely and is now a major player in the menswear game. The denim shirt is usually left for casual outfits but, again, with smart and casual pieces being mixed together more nowadays, it’s very easy to smarten one up.