COS Contrast Stripe Knitted Track Jacket in BLACK IVORY endource Abstract Patterned Jacket with Stitching Detail Dark Navy Blue Black String Detail Viscose Jacket Sequin Embellished Ribbed Jacket Black Waist Drawstring Textured Jacket Khaki. The Black String Detail Viscose Jacket from Just Cavalli is a versatile piece that every fashion forward individual needs in their wardrobe. Made from high quality viscose material, it boasts a luxurious feel that will keep you comfortable throughout the day. The intricate string detailing adds a touch of edginess to your outfit, making you stand out from the crowd.