A trench coat is a timeless and versatile garment that emerged during World War I as a military uniform. Its iconic features include a double-breasted closure, Raglan sleeves, a storm flap, a belt, and a gun flap, all of which serve both functional and aesthetic purposes. Trench coats are typically made from gabardine, a water-resistant material. Their association with spy and mystery genres, as well as iconic characters like Humphrey Bogart, has further cemented their enigmatic allure. Fashion brands like Burberry have played a significant role in popularizing trench coats, making them a staple in both casual and formal wardrobes.