Viscose is a semi-synthetic fabric made from wood pulp that has been chemically processed into a soft, breathable fiber. It sits in an unusual middle ground: the raw material is natural cellulose from trees, but the manufacturing process transforms it so heavily that the final product behaves quite differently from cotton or linen. You’ll find viscose in everything from dresses and blouses to bedding and upholstery, largely because it drapes beautifully and feels silky against the skin at a fraction of the cost of true silk.
How Viscose Is Made
The journey from tree to textile involves several chemical stages. It starts with wood pulp, most commonly from beech, eucalyptus, pine, or bamboo. That pulp is soaked in a strong alkaline solution (sodium hydroxide) to break down the cellulose into a more workable form. The resulting material is pressed, shredded, and then aged to break the cellulose chains into shorter lengths.
Next comes the step that gives viscose its name. The processed cellulose is treated with carbon disulfide, turning it into a thick, honey-colored liquid called “viscose.” This liquid is forced through tiny holes in a device called a spinneret, similar to a showerhead, into an acid bath that hardens the streams into fine fibers. Those fibers are then washed, cut, and spun into yarn ready for weaving or knitting.
The whole process is energy, water, and chemical intensive, which is a key reason viscose carries a more complicated environmental profile than you might expect from a “plant-based” fabric.
What Viscose Feels Like and How It Performs
Viscose has a smooth, cool hand-feel that’s often compared to cotton or silk. It absorbs moisture well, making it comfortable in warm weather, and it takes dye easily, which is why viscose garments tend to have rich, vibrant colors. The fabric drapes loosely rather than holding structure, so it works best in flowing silhouettes like wrap dresses, skirts, and loose-fitting tops.
The biggest performance weakness is durability when wet. Viscose loses roughly half its tensile strength the moment it gets soaked, which means the fibers are far more vulnerable to stretching, distortion, and tearing during washing. This single property drives most of the care headaches people experience with viscose clothing.
Caring for Viscose Without Ruining It
Shrinkage is the main risk. Viscose can shrink anywhere from 3% to 25% after a first wash if you’re not careful, with the higher end of that range typically caused by hot water or machine agitation on a rough cycle. To keep garments close to their original size, wash in cool water around 20°C (68°F), use a gentle or hand-wash cycle, and avoid wringing or twisting the fabric.
Skip the tumble dryer entirely. Lay viscose flat on a clean towel and reshape it while damp. If you need to iron, use the lowest heat setting (often labeled “silk”) with a pressing cloth between the iron and the fabric. A steam setting helps release wrinkles without scorching. Many viscose garments carry a “dry clean only” label, and if yours does, it’s worth following, especially for structured pieces like blazers or tailored pants where even minor shrinkage would ruin the fit.
Viscose vs. Modal vs. Lyocell
All three fabrics start from wood cellulose, but the manufacturing process and the resulting fabric differ in important ways.
- Viscose uses the most chemical-intensive process and produces a fabric that’s soft and drapey but relatively fragile when wet. It’s the most common and least expensive of the three.
- Modal is essentially an upgraded viscose. The fibers are stretched during production to create a stronger, more stable fabric that holds its shape better through washing. It’s a popular choice for underwear and activewear basics.
- Lyocell (often sold under the brand name TENCEL) is produced using a non-toxic solvent in a closed-loop system that recovers nearly all the chemicals used. Lenzing, the company behind TENCEL, reports recovering 99.8% of the solvent. Lyocell is stronger than viscose both wet and dry, wrinkles less, and has a noticeably softer feel after repeated washing.
If you’re choosing between the three purely on performance and sustainability, lyocell wins on both counts. But viscose remains far more widely available and affordable, which is why it still dominates the market for cellulose-based fabrics.
Environmental Concerns
Viscose’s environmental footprint has two major pressure points: forests and factory emissions.
On the forest side, the wood pulp has to come from somewhere, and historically that has included ancient and endangered forests. The nonprofit Canopy tracks this through its Hot Button Report, which ranks viscose producers on their sourcing practices. As of the most recent report, about 70% of all producers have earned satisfactory ratings, indicating a genuine industry shift toward responsible forestry. Top-rated manufacturers include Lenzing, Aditya Birla, and Tangshan Sanyou, all of which scored in the highest tier with low or no known risk of sourcing from threatened forests.
On the factory side, the conversion of cellulose into fiber releases carbon disulfide and hydrogen sulfide, both toxic gases. A study that measured emissions at viscose plants in India found that producing one metric ton of viscose staple fiber released roughly 100 kilograms of carbon disulfide and 33 kilograms of hydrogen sulfide. Scaled globally, the viscose industry was estimated to emit about 578,000 metric tons of carbon disulfide and 192,000 metric tons of hydrogen sulfide per year. These chemicals pose health risks to factory workers and contribute to air pollution in surrounding communities. Closed-loop lyocell production largely eliminates these emissions, which is a major reason the industry has been gradually shifting in that direction.
When Viscose Makes Sense
Viscose works well for garments you don’t need to wash frequently: occasion dresses, blouses, lightweight scarves, and lined skirts. Its drape and sheen give it a more expensive look than its price tag suggests, and it breathes better than polyester in hot weather. It’s less ideal for activewear, everyday t-shirts, or anything you’ll wash after every wear, because the repeated stress of laundering shortens its lifespan considerably.
Blended fabrics can offset some of viscose’s weaknesses. A viscose-cotton blend holds up better in the wash while keeping the softness. A viscose-polyester blend resists wrinkles but sacrifices some breathability. Check the care label and fiber content before buying, because a garment labeled “viscose” might be 100% or might be a blend, and the care instructions will differ accordingly.