Stren · Fishing Line & Fishing Tackle
Stren High Impact Monofilament Fishing Line 1275 Yards Lo-Vis Green 10 Pounds
Lower concern. Standard nylon fishing line without known PFAS risk.
Stren monofilament is standard nylon, not a coated or treated product typically associated with PFAS. No brand disclosure on PFAS, but the base material carries lower inherent risk than waterproof or nonstick products.
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Nylon monofilament fishing line
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Stren High Impact is extruded nylon monofilament, a synthetic polymer widely used in fishing applications for decades. Nylon monofilament does not rely on coatings, glazes, or chemical treatments that typically introduce lead, cadmium, or volatile compounds. The green color is achieved through pigment additives during extrusion, but exposure is minimal since the line remains sealed and is not heated or ingested during typical use.
The brand's record and disclosure
Stren is a legacy fishing line brand (owned by Newell Brands) with no public safety disclosures, certifications, or documented chemical controversies specific to monofilament products. The brand does not publish material safety data sheets or chemical composition transparency, which is typical for fishing tackle manufacturers. No recalls or hazard reports involving Stren monofilament are on record with the CPSC or fishing safety organizations.
How it compares in its category
Monofilament fishing line is inherently lower-risk than braided lines (which may contain additives or dyes with migration potential) and fluorocarbon lines (which involve different polymer chemistry). Stren's standard nylon formulation sits in the mainstream of the category; no data suggests it differs materially from competitors like Berkley, Trilene, or store brands in chemical composition or leaching behavior. The lo-vis green pigment is cosmetic and does not alter safety profile relative to clear or other colored monofilament.
If you buy it
Monofilament fishing line requires no special handling or maintenance during storage beyond protection from UV and extreme heat, which degrade nylon over time and reduce tensile strength. Replace the line annually or after visible wear, fraying, or loss of clarity, as degraded line can shed microfibers into water (though this is a practical and environmental concern, not an acute chemical hazard). Do not expose the spool to direct sunlight for extended periods or store near heat sources. Dispose of used line responsibly by coiling and placing in trash; do not leave it in the environment, where it poses entanglement risk to wildlife.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Nylon polymer degradation and microfiber shedding
Nylon monofilament degrades when exposed to UV and heat, potentially releasing microfibers into freshwater or saltwater environments. This is primarily an environmental and aquatic harm concern rather than a direct consumer toxicity hazard, but warrants responsible disposal.
Pigment or dye leaching from green colorant
Green colorants in nylon monofilament are integrated during extrusion and have no established migration into water or skin contact during normal fishing use. No published testing or complaints regarding pigment leaching from Stren products are available.
Heavy metals in synthetic colorants
Modern nylon fishing line manufacturers do not rely on lead- or cadmium-based pigments, which were phased out decades ago. Stren's green colorant is presumed to be synthetic organic or iron-oxide based, with no public record of heavy metal content.
Volatile organic compound (VOC) off-gassing
Extruded nylon monofilament does not require adhesives, solvents, or heat-activated resins during use, so off-gassing is not a recognized hazard in this product category. Storage in a closed spool or tackle box does not create meaningful vapor accumulation.
Ingestion or choking hazard (mechanical, not chemical)
Fishing line presents a mechanical ingestion or entanglement risk if swallowed by children or pets, but this is a physical hazard unrelated to chemical composition or material safety. Store spools out of reach of small children and animals.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More fishing line & fishing tackle 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.