The garment in question is a type of outerwear, specifically a shortened version of a classic design. It combines the iconic features of a traditional weatherproof overcoat with a more contemporary, above-the-knee silhouette. Examples often include details such as epaulettes, a double-breasted closure, a belted waist, and a storm flap.
This particular style offers versatility and sophistication, allowing for both casual and formal wear. Its shorter length provides greater freedom of movement and can be more flattering on a wider range of body types than its full-length counterpart. The origin of its design lies in military garments, adapted for civilian use and continually refined over time for enhanced style and practicality.