French denim is so its own thing: high-waisted, and straight-legged, rather than truly relaxed or boyfriend-y — it really runs right down that line between sort of desexualized but never sloppy. Also: never embellished, never ripped, never bedazzled — just classic denim, usually in medium to dark rinses, and often more cropped and/or tailored than you’d expect from a pair of American jeans. Anecdotally (though not surprisingly) I’ve found French denim to be stiffer/less jegging-y than US brands, since comfort there is not such a priority.