Oh, it's for sure from the men's section. In addition to being cut longer in the sleeve and broader across the shoulders, the design of men's clothes are often more classic and less trend-driven, and they're often made of more durable fabrics -- this jacket particular jacket is from the men's section, and is indestructible. The clothes are fashionable longer and last longer.
There was a great interview on NPR with the comedian Eddie Izzard, who describes himself as an "action transvestite" and expressed his interested in running for British parliament. The host asked, "Do you think London is going to be ready to elect someone to parliament who has spent his career telling jokes, often while wearing women's clothing?"
Izzard responded, "Yes, but they're not women's clothes you see, they're mine, cuz I bought them."