Greys and blacks dominated the catwalks Tuesday as Giorgio Armani, DSquared2 and Neil Barrett wound up the fourth and last day of the Milan's men fashion shows for autumn-winter 2011-2012. Armani presented grey in all its incarnations -- stone coal, blue-grey, greyish-green, with jackets with strong shoulders and clean silhouettes. In terms of materials, flannel, wool and leather dominated.