Koral Review, Is Koral Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 4 graded products, Koral averages Poor (31/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
Graded and flagged Poor and Bad, we’d swap these
Koral
Lustrous High-Rise Athletic Leggin - New Women | Color: Blue
nylon blend athletic knit, likely uncoated
Heavy metals
Nylon knits are typically disperse-dyed with azo compounds; some older formulations or…
Elastane (spandex) degradation and microfiber shedding
Elastane exposure to heat, chlorine, or harsh detergent can break down and shed…
Residual dyes bleeding and skin irritation
Cheap or poorly fixed dyes can leach onto skin during wear or washing, causing irritation…
Lower concern. Athletic knit typically has no PFAS finish.
⚠Risky category by default
Koral
NWT Koral Lustrous Infinity High Rise Legging
Nylon blend with unspecified water-resistant treatment
PFAS
Water-resistant treatment is nearly certain to contain fluorinated compounds unless…
Microplastic shedding
All synthetic fiber textiles shed microfibers during washing. Nylon leggings are no…
Moisture-wicking leggings likely treated with water-repellent coating.
⚠Waterproof or stain-proof treatment
Koral
Dynamic Duo High-rise Energy Leggings Black/infrared
Nylon/spandex blend, likely water-repellent coating coated
Formaldehyde / VOCs
Black nylon requires heavy dyeing; reactive azo dyes and formaldehyde-based fixatives are…
Spandex degradation and chemical leaching under UV and heat
Spandex (elastane) degrades faster than nylon when exposed to chlorine, salt, heat, and…
Formaldehyde / VOCs
Nylon and spandex do not inherently cause skin irritation, but pre-finishing chemical…
Microplastic shedding during wash and wear
Synthetic nylon/spandex textiles shed microfibers during washing and friction. This is…
High-performance leggings likely treated with water-resistant coating; no PFAS disclosure available.
⚠Waterproof or stain-proof treatment
Koral
Drive High-Rise Energy Legging
Nylon blend with moisture-wicking treatment
PFAS
Nylon activewear with moisture-wicking treatment commonly uses PFAS-based water-repellent…
Formaldehyde / VOCs
Nylon finishing processes sometimes employ formaldehyde-based crosslinkers to set…
Microplastic shedding from synthetic fiber
Nylon leggings shed microfibers during washing. While this is an environmental and…
Coating degradation and leaching over time
Moisture-wicking finishes degrade with repeated washing and heat exposure. As the coating…
Moisture-wicking apparel; unclear if water-repellent coating contains PFAS.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →