Microplastics
Cotton is recorded as Natural Fiber with no listed microplastic polymer, so it does not add a microplastic-source penalty.
A natural, biodegradable fiber. Organic cotton is more sustainable, using less water and avoiding harmful pesticides compared to conventional cotton.
Greener Closet scores materials from several penalty inputs. The same material can be reasonable in one product and weak in another, but these are the default drivers behind the base material record.
Cotton is recorded as Natural Fiber with no listed microplastic polymer, so it does not add a microplastic-source penalty.
MaterialsDB does not apply a base PFAS penalty to Cotton. Product-level water, stain, or performance finishes can still change PFAS risk.
Cotton has no persistence penalty in MaterialsDB, which generally reflects better biodegradability than petroleum-based synthetics.
Cotton has no default microfiber-shedding penalty in MaterialsDB. Garment construction and laundering still matter.
Cotton carries a manufacturing-energy penalty, so production impacts remain part of the score even when microplastic risk is low.
Paste the full fabric label into the homepage checker. A 95% cotton, 5% elastane garment will not score the same as 100% cotton, and the checker handles those percentages.
Use the material-label checker1056 visible scored products include Cotton.

Brand: Kotn

Brand: Kotn

Brand: Kotn

Brand: Coyuchi

Brand: Coyuchi

Brand: Coyuchi

Brand: Coyuchi

Brand: Coyuchi
Cotton has no listed microplastic polymer in MaterialsDB, though garment construction and washing still affect fiber release.
Cotton has no half-life penalty in MaterialsDB, which is a better biodegradability signal than petroleum-based synthetics.
Use the Greener Closet material-label checker with the full percentage label, because blends can change the final score even when Cotton is only one part of the garment.