Guides

Is bamboo fabric natural?

Usually not. Most "bamboo" clothing is rayon that started as bamboo.

1. Most "bamboo" fabric is rayon

To make most bamboo fabric, bamboo pulp is dissolved with chemicals and spun into new fibers. That fiber is rayon (also called viscose), and the FTC says "there's no trace of the original plant" left in it.¹ It's the same kind of fiber as rayon made from wood pulp, so TruTag counts it as semi-synthetic: made from a plant, but heavily processed.

2. What the label is supposed to say

Under FTC rules, it has to be labeled "rayon made from bamboo" or "viscose made from bamboo". A product can be called just "bamboo" only if it's made directly from bamboo fiber.^1,2 A label that simply says "100% bamboo" is a red flag.

3. The FTC has fined big retailers over it

• 2009: the FTC charged four sellers with passing off rayon as bamboo.³
• 2013: Sears, Amazon, Macy's and Leon Max paid $1.26 million in penalties for mislabeling rayon textiles as bamboo.⁴
• 2022: Kohl's and Walmart paid $2.5 million and $3 million for marketing rayon sheets, towels and other textiles as bamboo.⁵

4. The "natural" benefits don't survive

Claims like "naturally antimicrobial" come from the bamboo plant, but the FTC says the process of turning it into rayon eliminates any such property.³ It's still rayon.

5. The chemicals matter

The FTC notes that rayon is typically made "using environmentally toxic chemicals in a process that emits hazardous pollutants."¹ One of them, carbon disulfide, is a workplace hazard that the CDC lists as affecting the nervous system and heart, among other organs.⁶

6. The better kinds: bamboo lyocell and bamboo linen

• Lyocell made from bamboo is still a rayon-type fiber, but it's made with a solvent that's recovered and reused in a closed loop, with less toxic chemicals.⁷ It should be labeled lyocell, not bamboo.⁸
• Bamboo linen (mechanically processed bamboo) is real bamboo fiber, separated the way linen is from flax. It's more labor-intensive and costly, and it's "a minuscule amount" of the bamboo fabric on the market.⁷

7. Is bamboo at least a green crop?

Bamboo grows very fast, but it isn't automatically low-impact. Intensively managed plantations can use substantial fertilizer and pesticides, so it depends on how it's farmed.⁹

How TruTag handles bamboo

TruTag shows bamboo as 🧪 semi-synthetic, the same as rayon, modal and lyocell. With TruTag Pro's Natural fibers only filter, bamboo rayon is filtered out unless you also allow semi-synthetics. More label terms: Decoding clothing labels.