Tropo refines the iconic ‘Aviator’ look of the past sixty years to create a modern classic.
Alutra Photochromic lenses are optimised for high contrast environments, such as flying and driving, where it can be extremely bright outside but where instrumentation is in deep shade. The photochromic element is activated by UV light and so rarely activates on an airliner flight deck due to the thick windscreens. UV penetration into other cockpits and car interiors will vary depending on the screen material; the sun-lenses will activate and adjust accordingly.
The frame colour is graphite and is made from titanium, a strong, lightweight and corrosion-resistant metal. Beta titanium is used for the arms and it’s springy properties apply just enough pressure to keep the frames securely in place.
The nose pads are fully adjustable for a customised personal fit, and the ear tips grip without pulling hair.
Sun Lens Category: EN Category: 2-3
Bigatmo Alutra (copper/brown) P20 Photochromic lens technology
- Superb sports and active lifestyle lens. Also optimised for high contrast conditions such as the flight deck of an aeroplane or driving a car.
- High speed photochromic lens smoothly reacts to bright or shady conditions, keeping your eyes relaxed when you’re out and about
- Lens material composed of Trivex NXT, a lightweight and virtually unbreakable optical polymer
- Industry leading anti-reflective, anti-scratch and omniphobic, ‘easy-to-clean’ coatings
- P20 photochromic material intergraded into the core of the lens so it cannot wear off
- 100% harmful UV light blocked
- Strong, high grade titanium fronts with beta titanium arms for comfort
- Remain comfortable under a headset/headgear even after many hours
- Benefit from super slim adjustable temples that stay securely & comfortably in place
- Ultra-lightweight at just 20g – (including lenses)
- Adjustable soft silicone nose pads
- Corrosion resistant and hypo-allergenic
- Individually hand polished to give every frame a unique, beautiful natural finish
The accessories that come with these sunglasses include:
- Crush-resistant, zip-up glasses case
- Microfibre polishing bag
- Additional non-slip nosepads
- Warranty, care and fitting instructions
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