From work day to late night rendezvous, the IRO Trusik Top is the piece to pick when seeking style and utility. A classic v-neck grounds this swingy blouse, while ruffled sleeves add the perfect touch of femininity to finish.. 53% viscose 47% rayon. Dry clean only. Belled sleeves. Crepe fabric. IRO-WS161. 17WWM16TRUSIK. Launched in 2002 by French brothers Laurent and Arik Britton, IRO combines vintage-inspired prints with city style. Their collection features an ever-changing color palette and styles that range from wardrobe staples to on trend pieces.