But wait, the term "1gen" isn't familiar to me in the context of clothing. Maybe it's a brand with a Japanese name. Let me see... There isn't a well-known brand named 1gen that I can find immediately. Alternatively, it could be a product line from a Japanese clothing store for younger kids or teenagers. The combination of "boy" and "men" is confusing. Maybe it's a mix of boy-sized clothes for men? Or perhaps there's a mix-up in translation or labeling.