Jumper by Sisley, Semi-sheer design, For some see-through sass, Wide neck, Balloon sleeves, Relaxed fit, For slouching around. 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.