Janet is right — it still is real merchandise, nicely discounted (and discounted even more if it doesn’t sell during the first and/or second markdowns!), but I don’t think it’s because it was the week after Fashion Week. The sales (or Les Soldes, as they are in French) take place twice a year: January and June. The government sets the dates; they always start on a Wednesday for some reason, and usually last something like six weeks. Dates may vary between Paris and the provinces. So you can just google “soldes d’été 2025 » or « soldes d’hiver 2025 » sometime this fall and find the dates (hint, the January dates are already set - for Paris they will start January 8 and run through February 11. But in a few other departements, they will start on January 2. I think they haven’t set the dates yet for next summer’s soldes, although one website (unofficial) gives some dates.
I picked up two items *soldées * this past week. One was 20 percent off (for a high-quality item); one was 50 percent off. It’s also the time when I can for example look at clothing from brands I like that are usually too expensive.