The DEPLOY classic suiting gabardine wool is sourced from a top end Japanese supplier, renowned for their exceptionally fine weave & environmental certifications. They believe in being gentle & warm - towards people & the planet. We couldn't agree more. This cloth is a mid-weight, tropical 100% wool, which means its temperate nature keeps you cool when it's warm & warm when it's cold. The best thing about this fabric is that the black stays black forever, so you can keep adding to your essential collection, knowing the pieces will always match season after season.