96% cotton 4% elastane. Made in Portugal. Dry clean only. Unlined. Pull-on styling. One-shoulder styling. Stretch rib knit fabric. IRO-WD233. 21SWM33HUNNIE. 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.