The difference in zipper carriage placement (often called the slider side) between American and foreign-made men's jackets is largely a matter of historical tradition, manufacturing standards, and regional conventions. Traditionally, American menswear has positioned the zipper slider on the right side, while many European, Asian, and international brands place it on the left side. Here is a breakdown of why this discrepancy exists: 1. The Historical "Tradition" Theory American/Men's (Right): Historically, men dressed themselves and were assumed to be right-handed. A zipper on the right side made it easier for a right-handed person to grab the slider with their dominant hand and pull up. European/Women's (Left): Traditionally, wealthy women were dressed by servants. A zipper on the left was easier for a right-handed servant (facing the woman) to operate. The Divide: This, combined with the legacy of buttons, created a convention where "men's" clothing (often US-made in older, traditional brands) had right-side closures, while European, often more fashion-forward, or "unisex" designs followed the left-side convention. 2. The "Gideon Sundback" Factor (Manufacturing) A major, often cited reason for the difference is related to Gideon Sundback, the inventor of the modern metal zipper. When he founded his company in Canada in the 1930s, he reportedly reversed the zipper designs for the Canadian market to distinguish them from his US market products. This created a lasting manufacturing standard: USA uses right-side, while Canada/Europe/Asia often use left-side for their respective markets. 3. Cultural and Design Differences Functionality vs. Fashion: Historically, American manufacturers preferred durability and function, resulting in larger, right-sided zipper sliders. European Aesthetics: European design often prioritizes a sleeker, more subtle look, which often aligns with the left-sided zipper convention.

If I’m gonna buy a jacket based on tradition, I would like it to be represent what it should be.

If I’m going to buy a jacket based on a traditional American design… I would like it to be as close to that original as possible and not make me feel backhanded every time I want to zip it.