40/ 100
F

PFAS score

Orvis Hydros Superfine Fly Line

Orvis · Fishing Line

Orvis Hydros Superfine Fly Line

F · High PFAS

Skip until Orvis discloses coating chemistry or provides PFAS testing.

Orvis Hydros Superfine fly lines feature a waterproof coating whose composition is not publicly disclosed. Fly line coatings historically used Teflon-type coating and other Teflon-family coating for water repellency and durability, raising concern for PFAS.

The safe swap

Stren Original

Stren

Stren Original

100/100 safety

A

Still want this one anyway? Check the price on Amazon. We’d swap it.

Material

PVC-free plastic core with proprietary coating

Brand disclosure

Brand is silent on PFAS

Lab data

No public lab test

Why this grade

Waterproof / stain-resistant treatment

water-repellent coating treatments have historically used PFAS.

Hurts the grade

Category baseline

other is a category where PFAS exposure is more common.

Hurts the grade

No PFAS disclosure

No public statement about PFAS in this product.

Hurts the grade

What we don’t know

This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% 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.

Safer alternatives in Fishing Line

Stren Original

Stren

Original

Monofilament nylon fishing line

A
B
PFASAll
A · Very low PFAS2 flags

Lower PFAS concern for a fishing line product; no coating or treatment typical of PFAS carriers.

Risky category by default

Maxima Ultragreen One Shot

Maxima

Ultragreen One Shot

Lubricant/chain oil (mineral or synthetic base)

A
B
PFASAll
A · Very low PFAS3 flags

Lower PFAS concern for a chain lubricant; minimal Teflon-family coating/waterproofing risk profile.

Risky category by default

Seaguar Blue Label

Seaguar

Blue Label

Fluorocarbon fishing line (monofilament)

A
B
PFASAll
A · Very low PFAS2 flags

Fluorocarbon fishing line may contain PFAS; insufficient public data to grade definitively.

Risky category by default

More fishing line 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.