Trousers by Sisley, Suitable for work and play, Mid-rise waist, Zip fly with button fastening, Side pockets, Jet back pockets, We're just spoiling you now, Regular fit - true to size. Since its French debut in denim in 1968, Sisley has become known for its casual-chic attitude. With a philosophy centred on design-led classics, tailoring, jersey tops and knitwear join the ranks in interesting fabrications and cute cropped cuts.