IRO Charlos Blouse in Ivory. - size 38/6 (also in 36/4) IRO Charlos Blouse in Ivory. - size 38/6 (also in 36/4) Self: 80% triacetate 20% polyLining: 100% poly. Dry clean only. Hidden side zipper closure. Puff sleeve. Ruffle hem. Made in Poland. IRO-WS221. 20SWP16CHARLOS. 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.