Trousers by Sisley, A go-to wardrobe addition, Mid-rise waist, Concealed fastening, We've checked and it's definitely there, Check design, Functional pockets, Tailored design, 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.