A well-fitting Mens Leather Motorcycle Jacket provides both safety and style. It should be snug but not constricting, allowing for comfortable movement while riding. The shoulders should sit naturally, without bunching or tightness. Sleeves should reach your wrists with gloves on, and the jacket should cover your lower back. Consider wearing your riding gear underneath to ensure everything fits together seamlessly. Opt for a jacket with adjustable features for a fine-tuned fit. Remember, a good fit is key for both comfort and protection on the road.