About Textile Fibers

Every fabric begins as a fiber, and the fiber decides most of what the fabric can ever do — its warmth, absorbency, strength, luster, care and cost. Textile fibers sort into a simple map. Natural fibers grow in plants and on animals: cotton, flax, hemp and other plant fibers; wool, alpaca, cashmere, mohair, silk and other animal fibers. Manufactured fibers are made in plants of the industrial kind: regenerated fibers built from natural cellulose, and fully synthetic fibers built from chemical feedstocks.

This page is the hub for the fiber guides on this site. Each fiber in the directory below has its own page covering where it comes from, how it is processed, what it does well and where it fails. Use this overview to place a fiber in its family first — family explains most behavior — then read the individual guide for grades, blends and sourcing questions.

Natural Fibers: Plant and Animal

Plant fibers are cellulose. Cotton grows as a short staple around the seeds of the cotton plant and spins easily into soft, absorbent yarn. The bast fibers — flax for linen, and hemp — run the length of their plant stems, and deliver longer, stronger, crisper fiber at the cost of retting and separation work. Animal fibers are protein. Wool and the specialty hair fibers insulate, absorb vapor and resist odor because of their scaled, crimped structure, while silk arrives as a continuous filament with unmatched luster.

Natural fibers share agricultural realities: weather, pests, harvest size and grading all move their price and quality from season to season — the bumper crop page in this directory explains how a single harvest swings fiber supply. They also share a reputation advantage with many consumers, which is earned in comfort and breathability more than in durability, where the best synthetics often win.

Manufactured Fibers: Regenerated and Synthetic

Regenerated fibers start from natural cellulose — usually wood pulp — that is dissolved and re-formed as fiber. The viscose process made rayon, the first manufactured fiber; modified versions produced modal; and the closed-loop solvent process produced lyocell. These fibers behave like refined plant fibers: absorbent, draping, comfortable, with wet strength that improves as you move from standard viscose toward lyocell.

Fully synthetic fibers — polyester, nylon and the elastane family sold generically as spandex and under brands such as Lycra — are polymerized from chemical feedstocks and melt- or solution-spun to exact specifications. Their strengths are strength itself: tenacity, abrasion resistance, wrinkle resistance, fast drying and lot-to-lot consistency. Their weaknesses are low absorbency, heat sensitivity in some types, and the microfiber shedding that laundering releases, which the industry is actively engineering against.

Staple, Filament and Choosing a Fiber

Form matters as much as chemistry. Staple fibers are short lengths that must be spun into yarn, giving softer, warmer, more matte fabrics. Filaments are continuous strands, used as smooth yarns directly or cut into staple. The same chemistry in filament and staple form makes visibly different cloth, which is why specifications name both the fiber and its form.

Choosing a fiber is a matching exercise: list the conditions the product will meet — skin contact, water, abrasion, heat, sunlight, laundering, flame rules, cost ceiling — and the fiber family that survives those conditions with the hand and look wanted. Most commercial fabrics are blends precisely because no single fiber wins every row of that list, and the fiber guides in this directory are written to make those trade-offs plain, fiber by fiber.