Verdict: Costa Del Mar Fantail Pro is the better fishing-specific frame; Maui Jim Peahi's lens clarity is marginally superior for general water viewing and driving in addition to fishing.
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Winner: Costa Del Mar Fantail Pro
Spec-by-spec comparison
Costa Del Mar Fantail Pro
Maui Jim Peahi
Lens material
580G glass (or 580P plastic)
PolarizedPlus2 (glass or poly)
Polarization quality
Excellent (580 contrast)
Excellent (color-restoring)
Frame floats
Yes
No
Peripheral coverage
Full wrap
Semi-wrap
Hydro grip pads
Yes (hydrolite)
Hydrophobic coat only
UV protection
100%
100%
Costa Del Mar Fantail Pro
What works
580G glass lens optimized for underwater contrast and fishing-specific light
Frame floats — survives being dropped in water
Wraparound design blocks peripheral light from low-angle sun
What doesn't
580G glass lens contrast enhancement can feel unnatural to new wearers
Premium glass lens version is heavy for all-day wear
Frame doesn't work as well for general daily use vs dedicated fishing
Maui Jim Peahi
What works
PolarizedPlus2 lens has exceptional color fidelity — more natural-looking than Costa's contrast-boosted view
More versatile for driving, hiking, and general outdoor use beyond fishing
Strong global reputation among water sports enthusiasts beyond fishing
What doesn't
Frame doesn't float — dropped in water means lost glasses
Less peripheral light blocking than Fantail Pro's full wrap
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