Challenge Sailcloth, founded in 1986, has the largest line of woven sailcloth in the world. Duckworks established a business relationship with them a dozen years ago, and have since then supplied many of our customers with white 3.8 oz. sailcloth.
Challenge 3.8 Oz. Genoa is a rugged all around fabric designed for mainsails and jibs on dinghies and small boats, and all purpose genoas. With an actual weight of 4.0 Oz., 3.8 is "balanced" in the sense that it has equal total yarn fiber (number of yarns times denier or size) in both warp and fill directions.