Model Reference (180cm / 73kg): Wearing size XL. Sleeves reach near the elbow, and the length hits at the hip, providing an excellent relaxed fit for those seeking an oversized look.
Estimation (175cm / 65kg): Size L is recommended. This size maintains the loose street vibe while offering a more balanced length for this height.
Estimation (165cm / 55kg): Size M. Given the fabric's weight, pairing with ultra-wide trousers and ensuring the shoe toes are visible—or slightly tucking the front hem—will optimize the visual balance and proportions.