Koral Dynamic Duo High-rise Energy Leggings Black/infrared
No coating described, and no PFAS statement from the brand.
The product information we reviewed describes nylon/spandex blend, no coating disclosed, with no water-repellent coating named. Water resistance on products like this usually comes from the material and its seals rather than a surface treatment. The brand has published no PFAS statement for it.
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Material
Nylon/spandex blend, no coating disclosed
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Koral Dynamic Duo High-rise Black/infrared is made of, ingredients and materials
This legging is a nylon and spandex (elastane) blend with no disclosed water-repellent, antimicrobial, or other surface treatment. Nylon is a synthetic polyamide; spandex provides stretch and recovery. Neither fiber is inherently hazardous at typical use levels, but both can shed microplastics during washing, and dyes or finishing chemicals applied during manufacturing may leach in early washes. The black and infrared colorants are likely azo or reactive dyes; no specific concern is on record for this brand, but azo dyes can theoretically degrade under heat or UV if poorly fixed.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Azo dyes and dye bleeding
Black and infrared colorants are likely azo or reactive dyes. No specific allergic or health incidents reported for Koral leggings, but poorly fixed dyes can leach in early washes. Risk is low with proper cool-water laundering and minimal risk of ingestion or skin contact with loose dye.
Microplastic shedding during washing
Nylon fibers shed microplastics with each wash cycle. This is a known property of synthetic textiles and not specific to Koral. Environmental concern is established; direct health risk from wearing the garment is not. Wear-out is natural and occurs with all synthetic activewear.
Spandex degradation and elastic loss
Spandex elastane loses elasticity over time and accelerates in high heat, chlorine, or sunlight. No defect is on record for this product, but typical spandex lifespan is 2-3 years of regular wear. Replacement is a wear-and-tear issue, not a safety failure.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Nylon and spandex sometimes receive formaldehyde-based durable-press or anti-wrinkle finishes. Koral does not disclose finish type for this legging. Formaldehyde off-gassing is not documented for this product; if present, it would be minimal and decline rapidly after first wash.
Source, ATSDR ↗Heavy metals
Modern azo and reactive dyes are regulated to exclude cadmium and lead in most major markets. No heavy metal contamination is on record for Koral activewear. Risk is low for this product, though brand chemical supply-chain auditing is not public.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Koral does not publicly disclose PFAS use, chemical management policies, or third-party certifications (such as GOTS, OEKO-TEX, or Bluesign) for this product line. The brand has no known major chemical or labor recalls on public record, but limited transparency means end-user verification of manufacturing practices is not straightforward. No independent audit data for Koral activewear chemistry is widely available.
How it compares in its category
Koral sits in the mid-to-premium activewear segment. Competitors with comparable price points (Lululemon, Outdoor Voices, On Running) often publish PFAS commitments or OEKO-TEX certification; Koral does not. Budget brands rarely disclose either. Premium certified brands (like Patagonia or Allbirds) typically offer third-party chemical testing transparency. On microplastic shedding and dye stability, this nylon/spandex blend is standard for the category; no material advantage or disadvantage versus peers.
If you buy it
Wash in cool water (below 30C/86F) and turn inside out to reduce fiber shedding and dye leaching in early washes. Avoid chlorine bleach, fabric softener, and high heat drying, which can degrade nylon and elastic. Air dry or low heat only. Expect gradual loss of elasticity and color after 50-100 washes; replace when waistband or leg elastic no longer holds shape. Machine wash separately or with like colors in first 3-5 cycles to limit dye transfer.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Koral has made none
Formulations change between production runs, so check the current label. How we grade.
More activewear grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.