Cook Shark A666 Photochromic Polarized Aviator Sunglasses — Al-Mg, 149mm, 56g, Double Bridge

Cook Shark A666 Photochromic Polarized Aviator Sunglasses — Al-Mg, 149mm, 56g, Double Bridge

The Cook Shark A666 is a 149mm aluminium-magnesium aviator photochromic polarized sunglass — the widest frame in the Cook Shark range. Classic pilot/aviator silhouette with double bridge, rounded teardrop lenses, TAC polarized UV400 photochromic lens, silicone nose pads, 63mm lens width, 53mm lens height, 15mm bridge, 145mm temples, 56g, 3ATM splash resistance. Eight lens colour variants.

Key Specifications

Variants — Eight Lens Options

Clear: Near-transparent base — maximum photochromic range from very light to dark. The most dramatic tint change.

Black: Dark fixed polarized — standard bright-sun option.

Gray: Grey tint polarized.

Blue: Blue mirror lens.

Coffee: Brown/warm tint.

Yellow: Light contrast enhancement for overcast, dusk and low-light conditions.

Photochromic: Dedicated auto-tinting + polarized variant.

Smoky/additional variants: Confirm from listing colour selector.

Double Bridge Aviator

The A666 uses a classic double bridge — two parallel metal bars connecting the lenses across the nose area. The double bridge is the defining architectural feature of the traditional pilot/aviator frame, originating in military aviation eyewear. It creates a more structured, formal frame character than a single bridge. At 149mm overall width and 63mm lens width the A666’s lenses are larger than the A620 pilot frame, creating a stronger wrist presence.

Photochromic Function

The A666’s photochromic lenses activate in UV light — darkening outdoors and lightening indoors or in low-UV conditions. The listing states a 5-second transition claim — this is the manufacturer’s stated response time under direct UV exposure. Actual transition speed varies by UV intensity, ambient temperature and individual lens condition. In lower UV conditions (overcast, windscreen-filtered car interiors) transition is slower.

The polarized filter operates simultaneously with the photochromic tint at all levels — glare reduction is maintained regardless of whether the lens is at its lightest or darkest.

149mm — The Widest Cook Shark Frame

At 149mm the A666 is the widest overall width in the Cook Shark range at Jewelry Addicts — wider than the 8808 (140mm), 8127 (140mm), 8699 (145mm) and A571 (140mm). For buyers with wider faces who find 140–145mm frames sitting too tight at the temples, the 149mm A666 is the appropriate fit. For buyers with narrower faces the 149mm may overhang the cheekbones.

3ATM Splash Resistance

The A666 specifies 3ATM water resistance — suitable for rain, splashes and handwashing. Not suitable for swimming or submersion. The polarized lens function makes the A666 effective for fishing and water environments within the splash-resistance range.

A666 vs A620 — Two Cook Shark Pilot/Aviator Frames

Choose A666 for the wider 149mm frame, double bridge classic aviator silhouette and the wider 8-variant lens colour selection. Choose A620 for the 138mm narrower frame and the adjustable silicone nose pad design.

Complete Cook Shark Driving/Riding Range

Who Is the Cook Shark A666 For?

The A666 is built for:

• Wider face buyers who need 149mm — the largest Cook Shark frame at Jewelry Addicts
• Classic double bridge aviator buyers who want the traditional military-heritage pilot frame with photochromic function
• Clear lens buyers — the clear base variant offers the widest photochromic range from near-transparent to dark
• 3ATM buyers who want the water resistance specification on a photochromic aviator frame

More from Jewelry Addicts

• Cook Shark A620 Pilot Photochromic — narrower pilot alternative
• Cook Shark 8808 Pro — 11 lens option rimless alternative
• Cook Shark 8699 Gradient — gradient driving alternative
• Cook Shark 2024 Sports Polarized — sport wrap alternative
• Cook Shark Sunglasses Guide — full Cook Shark range guide