10 Ounces
Ten ounces is also a great weight for a “4 season” suit, although it can lean slightly to the heavier side. The challenge with many “4 season” fabrics is that they often lack the texture of a more seasonal cloth, which can make a suit slightly less versatile as seperates. For that reason, I often look for 10 ounce fabrics that have an interesting weave (like our navy hopsack) to give the garment maximum versatility as a business suit or casual sportcoat & trousers. - See more at: http://articlesofstyle.com/67281/a-guide-to-fabric-weights-for-menswear-suits/#sthash.DbpIw58v.dpuf