What is the difference between bio-based and biodegradable fabrics?

Bio-based and biodegradable are two distinct properties that are frequently confused. Bio-based means a material is derived from biological sources like plants rather than petroleum. Biodegradable means a material will break down naturally in the environment within a reasonable timeframe. A fabric can be bio-based without being biodegradable, and vice versa.

For example, bio-based nylon made from castor oil is still nylon, a plastic polymer that does not biodegrade in any meaningful timeframe. Similarly, PLA (polylactic acid) fabric made from corn starch is bio-based but only biodegrades under specific industrial composting conditions, not in a home compost bin or landfill. These nuances are often lost in marketing claims that imply natural origins equal environmental harmlessness.

Truly biodegradable fabrics include untreated organic cotton, linen, hemp, wool, silk, and Tencel. These fibers return to the earth naturally without leaving persistent plastic residues. When brands on ONDU describe their materials, they specify both the origin and the end-of-life behavior, giving you the full picture rather than selective marketing claims.