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Organic cotton vs bamboo vs TENCEL™ explained

Organic cotton vs bamboo vs TENCEL™ explained

Organic cotton, bamboo and TENCEL™ are often mentioned together in sustainable fabric discussions, but they are not the same type of material. Organic cotton is a natural plant fibre, bamboo fabrics are usually regenerated cellulose fabrics made from bamboo pulp, and TENCEL™ is a branded fibre name from Lenzing for fibres such as lyocell and modal.

The main difference is how the fibre is made. Organic cotton grows as a fibre on the cotton plant, while bamboo viscose and TENCEL™ Lyocell are made by processing cellulose into a new fibre. That means softness, drape, care behaviour and sustainability claims should always be checked per fabric, not only by fibre name.

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Why the difference matters

A fibre name can tell you something about origin, but not everything about the finished fabric. Construction, dyeing, finishing, certification and care behaviour also influence comfort, durability and environmental impact.

This is especially important for baby clothing, basics, summer garments and skin-contact products. A soft fabric is not automatically organic, and a plant-based raw material is not automatically low impact.

Organic cotton

Organic cotton is cotton grown under organic farming standards and is often linked to GOTS when the textile product is certified through the supply chain. GOTS covers organic fibres and includes ecological and social criteria, traceability and third-party certification.

Organic cotton fabrics can be woven or knitted, from poplin and muslin to cotton jersey and rib. They usually feel natural and breathable, but they can still shrink, crease or change shape depending on the fabric construction.

Best to check:

  • GOTS certification when an organic textile claim is needed.
  • OEKO-TEX® Standard 100 when harmful-substance testing is relevant.
  • Fabric weight and stretch recovery.
  • Whether the specific article is certified.

Bamboo

In textiles, “bamboo” usually refers to viscose or rayon made from bamboo cellulose, not a mechanically extracted bamboo fibre. The FTC states that textiles made through the rayon or viscose process should not simply be labelled as bamboo, but as rayon or viscose made from bamboo.

Bamboo viscose fabrics are often soft, smooth and fluid, which makes them suitable for garments that need drape and comfort. Sustainability claims need extra care, because the impact depends strongly on how the cellulose is processed into fibre.

Best to check:

  • Whether the fibre is actually viscose or rayon made from bamboo.
  • Whether the claim “bamboo” is used correctly.
  • OEKO-TEX® Standard 100 when harmful-substance testing is relevant.
  • Drape, opacity and care behaviour.

TENCEL™

TENCEL™ is a branded fibre name from Lenzing, used for fibres such as TENCEL™ Lyocell and TENCEL™ Modal. TENCEL™ Lyocell is made from wood pulp in a closed-loop production process where more than 99.8% of the solvent is recovered and reused.

TENCEL™ fabrics are often soft, smooth and fluid, with good moisture management and a refined hand feel. They are not the same as cotton, and they should be tested for shrinkage, seam stability and wet behaviour just like other cellulose-based fabrics.

Best to check:

  • Whether the article uses genuine TENCEL™ branded fibres.
  • Whether it is TENCEL™ Lyocell or TENCEL™ Modal.
  • Fibre composition and blend percentage.
  • Care instructions for the specific fabric.

Practical tip

Start with the claim you need to support. Use organic cotton with GOTS when the organic claim matters, check bamboo fabrics carefully for correct fibre naming, and use TENCEL™ when you need a branded cellulose fibre with documented production information.

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Written by

Tim Zanoni Nooteboom Textiles

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