Le Slip Français, a French underwear and apparel brand, made its stock market debut Tuesday on Euronext Growth Paris, betting that shoppers will pay for locally made clothing over ultra-cheap rivals like Shein and Temu. Guillaume Gibault started the company in 2011 to champion French-made textiles, and it has since branched out from men’s underwear into women’s underwear, socks, T-shirts, and swimwear. Shares opened at their €14.80 IPO price, slipped under it early, and recently changed hands at €15, for a market cap near €19M on 2025 revenue of €21M ($24.6M). Le Slip Français runs its own factory near Paris, sells “Made in France as a service” to other labels, and wants to double sales by 2030.
