IRO Tentac Shorts in Metallic Silver. - size 38/6 (also in ) IRO Tentac Shorts in Metallic Silver. - size 38/6 (also in ) Main: 71% linen 29% polyamideLining: 100% cotton. Dry clean only. Zip fly with hook and bar closure. Adjustable waist tie belt. Side slant pockets. Pleated details. Shorts measure approx 14.5 in length. Made in Bulgaria. IRO-WF10. 19SWM30TENTAC. 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.