In creating our Golden Fleece® Collection, we sought out the world's finest raw materials and innovative technology to craft garments that meet the highest standards of Brooks Brothers. With this sweater, we've taken an extremely fine 15.5-micron merino wool fiber and married it with latest fine gauge technology from our sweater masters in Italy. It is designed to be extremely lightweight and worn throughout the year. As part of our 3-D Knit Collection, it has been fashioned as a single, continuous garment, rather than assembled in panels. Without seams, it offers an improved fit, greater comfort and increased durability. dry-clean; made in Italy.