Carbon38 Women's Split Front Legging in Melt
Likely has water-repellent coating treatment; brand silent on PFAS.
Carbon38 does not disclose PFAS or water-repellent coating chemistry. Athletic leggings typically use water-repellent finishes that may contain PFAS. No public lab testing found.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Nylon blend athletic legging, standard water-repellent coating finish typical
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Carbon38 Women's Split Front Legging Melt is made of, ingredients and materials
Carbon38's Split Front Legging is a nylon blend (typically nylon 6 or nylon 6.6 mixed with elastane/spandex for stretch). This combination is industry standard for athletic wear and generally stable during normal wear. The water-repellent coating (water-repellent coating) finish applied to the fabric is the primary chemical concern; most brands use either legacy PFAS-based or newer PFAS-free formulations, but Carbon38 has not publicly disclosed which. Nylon itself does not leach significant toxins during wear, though the dye and finishing chemicals are the actual exposure vectors.
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.
PFAS
Standard water-repellent coating treatments on athletic leggings historically use PFAS; Carbon38 does not disclose formulation. PFAS-free alternatives exist but brand silence suggests possible legacy chemistry. Skin contact during wear is low-risk; laundering may mobilize residual finish.
Source, ATSDR ↗Formaldehyde / VOCs
Nylon textiles sometimes receive formaldehyde-based resin finishes for wrinkle or shrink resistance. No evidence this product uses such treatment, but water-repellent coating and elastic-stabilizing treatments may contain residual formaldehyde. Risk is minimal if product is rinsed before first wear.
Source, ATSDR ↗Elastane (spandex) degradation and microfiber shedding
All synthetic blended leggings shed microfibers during wash; this is a category-wide issue unrelated to Carbon38 specifically. Nylon and elastane both fragment over time, releasing microplastics into water. Impact increases with heat and agitation.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Azo dyes
No recalls or testing data for Carbon38 leggings. Nylon blends are routinely dyed with modern colorfast azo dyes; restricted azo dyes (those releasing carcinogenic amines) are banned in most Western brands, but no specific certification is listed for this product.
Antimony in polyester trims or thread
Primary fabric is nylon, not polyester, reducing antimony exposure. If trims, seams, or elastic contain polyester, antimony is possible but unconfirmed. No dedicated testing or brand disclosure available.
How is this PFAS grade calculated?
The brand's record and disclosure
Carbon38 has not made public commitments to PFAS-free textiles or published supply chain transparency reports as of available records. The brand does not advertise third-party certifications (such as OEKO-TEX or bluesign) for this product line. No recalls or contamination incidents are documented for Carbon38 apparel. The silence on water-repellent coating chemistry is typical of mid-to-premium athletic brands but represents a gap in consumer transparency that merits caution.
How it compares in its category
This legging sits in the premium athletic segment alongside Lululemon, Alo Yoga, and Gymshark. Many competitors in this tier now offer PFAS-free or transparently certified options; Carbon38's lack of public PFAS stance places it below leading disclosure standards. The nylon blend and water-repellent coating finish are unremarkable for the category. Price point suggests comparable quality to mid-tier competitors, but without the transparency premium brands increasingly market.
If you buy it
Wash in cold water with mild detergent to preserve the water-repellent coating finish and minimize any potential chemical leaching. Avoid high heat (dryer, direct sunlight prolonged exposure) as synthetic textiles can degrade finishes when heated. Do not dry clean, as solvents may interact with water-repellent coating chemistry unpredictably. Replace after visible pilling, coating loss, or color fading (typical lifespan 1-2 years for athletic wear at 2-3x weekly use).
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
- Carbon38 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.