THEORY Testra Trousers. Invest in classic staple pieces for your wardrobe with these Theory Testra trousers. Cut with a tapered loose fit, these cigarette style trousers are crafted in a luxurious wool blend and feature four pockets, belt loops and pressed pleats.Size selection: British sizing (USA sizing)Fits true to size, take your normal sizeThe inside leg of a size 8 (4) measures 71cmCut with a slim fit96% virgin wool, 4% elastaneLining: 82% polyester, 18% spandexDry clean onlyProduct code: 578016