Undyed

Undyed refers to materials that have not been treated with dye. In textiles, undyed fabrics retain their natural color, typically ranging from white to off-white, beige, or natural gray depending on the fiber and processing.

Common undyed fibers include cotton, wool, linen, and silk. Cotton fibers are usually creamy white or beige; wool can be white, gray, or brown; flax fibers tend toward light tan to grayish tones. Some leather goods and paper are also sold undyed to preserve their natural hues.

Advantages of undyed fabrics include reduced chemical use and environmental impact, as well as a natural aesthetic and potential cost savings. They can also avoid issues tied to dye lot variation. Disadvantages include a limited color range, potential staining or yellowing with age, and a more uniform appearance that may be less fashion-forward for some consumers. Care usually involves gentle washing and protection from prolonged sunlight; natural fibers may shrink or soften with use.

Historically, most textiles were undyed before the widespread use of synthetic dyes. In modern markets, undyed fabrics are used for sustainable, minimalist, or textured designs, and are favored when the fiber quality and texture are the primary appeal.

See also natural fiber, dyeing, sustainable fashion.