825 Yards of Shakespeare Sigma Premium Monofilament 20 LB Test Clear Blue Fluorescent Fishing Line / 20 Pound Shakespear vs UltraCast Ultimate Mono Fishing Line: which is safer?
SpiderWire UltraCast Ultimate Mono Fishing Line is our pick: better on PFAS and on the overall hazard picture.
Shakespeare
825 Yards of Shakespeare Sigma Premium Monofilament 20 LB Test Clear Blue Fluorescent Fishing Line / 20 Pound Shakespear
PFAS grade
B 85/100
Overall grade
C 71/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Monofilament nylon fishing line
Confidence
72%
PossibleAzo dyes in colorant
ReportedNylon polymer degradation and microplastic shedding
Our pick
Spiderwire
UltraCast Ultimate Mono Fishing Line
PFAS grade
B 85/100
Overall grade
C 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Monofilament nylon fishing line
Confidence
72%
PossiblePFAS in monofilament nylon
PossibleAdditives (UV stabilizers, processing aids)
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More fishing line & fishing tackle: see the full ranking