Smith Optics PivLock Echo

The Smith Optics PivLock Echo is a lightweight, versatile interchangeable-lens sport sunglass designed for high-performance use in fishing, cycling, running, hiking, and other outdoor activities. Its signature PivLock lens-change system allows instant, tool-free lens swaps to adapt to changing light conditions—making it a favorite for anglers and athletes who need quick transitions between bright sun and low light.

Key features include:

• PivLock interchangeable lens system — fast, secure lens changes with three included ChromaPop™ lenses (typically Bronze Mirror for bright sun, Clear for low light, and one additional tint like Rose or Green Mirror)
• ChromaPop™ lens technology — enhances color and contrast, filters two specific wavelengths of light to reduce eye fatigue and improve detail recognition (great for spotting fish, reading water, or tracking targets)
• Frame — lightweight, durable Grilamid TR90 construction with hydrophilic Megol® nose pads and temple tips for secure, no-slip fit even when wet or sweaty
• Fit — medium fit with medium coverage; available in standard and Asian fit options
• Lens size — 65 mm wide × 40 mm tall; 9-base curve for wrap-around protection
• Weight — ≈25–28 grams — extremely light for all-day comfort
• UV protection — 100% UVA/UVB protection
• Additional perks — anti-reflective and hydroleophobic coatings on lenses, auto-lock hinges, and a low-bridge fit option for high cheekbones

Anglers and outdoor users love the PivLock Echo for its fast lens swaps (ideal during dawn/dusk hatches or variable cloud cover), excellent optical clarity with ChromaPop, and secure, comfortable fit that stays put during casts, wading, or active movement. A premium, adaptable sport sunglass — built for performance and quick adaptation in demanding conditions.