- Stock: In Stock 1-3 days
- Brand: BOLLE
- CODE: TC-0010730
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Description
Safety & Polarized Sunglasses - Bollé STKS 420
Premium polarized Bollé Safety STKS 420 (STK42N51A) protective sunglasses featuring Cobalt Blue Mirror polarized lenses, integrated side shields, and AS/NZS 1337.1:2010 certification
The premium eco-friendly Bollé Safety STKS 420 Polarized Industrial Safety Sunglasses (Part No.: STK42N51A) from the world-renowned Bollé Safety perfectly bridge the gap between high-performance personal protective equipment and modern lifestyle eyewear. They are specifically designed for professionals, technical crews, and outdoor workers who require superior impact protection while working under bright sunlight, delivering exceptional all-day comfort both on and off the job site.
The STKS 420 stands out thanks to its advanced Cobalt Mirror Polarized lens technology. The lenses feature a grey base with an eye-catching blue cobalt mirror coating and incorporate a polarized filter. This technology effectively eliminates blinding glare reflected from water, metal, glass, asphalt, and other reflective surfaces, significantly improving color perception and visual clarity. At the same time, the glossy black (Shiny Black) frame is manufactured using more than 65% recycled polycarbonate, promoting sustainability without compromising structural strength or durability.
For maximum all-around protection, the full-frame design incorporates integrated clear side shields along with enhanced upper brow protection, shielding the eyes from dust, flying debris, and airborne particles. Weighing only 28 grams, the STKS 420 remains exceptionally lightweight for prolonged wear. The eyewear is fully certified to the stringent AS/NZS 1337.1:2010 standard for medium-impact protection, having successfully passed testing against a 6 mm projectile traveling at 45 m/s. In addition, the frame is Prescription Ready, allowing prescription lenses to be fitted by authorized optical specialists.
Ideal Uses & Applications
- Driving, Machinery Operation & Logistics: Polarized lenses eliminate glare from windshields and asphalt, significantly reducing eye fatigue during long working hours.
- Heavy Industry & Construction Sites: Ideal for construction, rigging, metalworking, mining, and industrial environments where UV exposure and impact hazards coexist.
- Law Enforcement & Emergency Response: Provide rapid visual adaptation in bright outdoor environments while protecting the eyes during demanding operational duties.
- Marine & Outdoor Activities: The Cobalt Blue Mirror coating effectively minimizes glare from water, making them equally suitable for recreational outdoor use after work.
Main Features & Benefits
- Polarized Lens Technology: Minimizes blinding glare, improves contrast, and delivers exceptionally clear vision in bright sunlight.
- Eco-Friendly Construction: Frame manufactured from 65% recycled polycarbonate (44% in the prescription version), helping reduce environmental impact.
- Complete Peripheral Protection: Integrated clear side shields and upper brow protection prevent debris from entering from the sides or above.
- Scratch-Resistant Coating: Special lens treatment provides outstanding resistance to scratches, abrasion, and demanding daily professional use.
- Certified Medium-Impact Protection: Fully compliant with AS/NZS 1337.1:2010 for reliable protection against high-speed particle impacts.
- Prescription Lens Compatible: Designed for easy conversion into prescription safety eyewear while maintaining its stylish sporty appearance.
Technical Specifications
| Manufacturer / Brand | Bollé Safety |
| Model / Series | STKS 420 / STK42N51A |
| Product Type | Polarized Industrial Safety Sunglasses |
| Frame Material | Recycled Polycarbonate (>65% Recycled Content) |
| Frame Color / Type | Shiny Black / Full Frame |
| Lens Material / Color | Polycarbonate / Grey Lens |
| Lens Technology | Cobalt Mirror Polarized |
| Lens Coating | Scratch-Resistant Coating |
| Standards / Certifications | AS/NZS 1337.1:2010 (Medium Impact Protection – 6 mm projectile at 45 m/s) |
| Weight | 28 g (Ultra-lightweight construction) |
| Lens & Frame Dimensions | Lens (A): 57 mm | Height (B): 43 mm | Bridge: 17 mm | Temple: 128 mm |
| Marking | Lens: I3 / Frame: AS/NZS 1337.1 |
| Package Includes | Protective microfiber pouch |
Technical & Safety Tip: Why Polarization and Base 4 Curvature Matter on the Job
The Benefits of Polarized Lenses on the Worksite: Many people associate polarized lenses only with fishing or driving, but they provide a major safety advantage in industrial and construction environments as well. Technical Tip: When working around sheet metal, glass buildings, vehicles, or wet surfaces, intense reflected sunlight can temporarily impair vision, increasing the risk of mistakes or accidents. The STKS 420's polarized filter eliminates these horizontal reflections, allowing you to clearly distinguish tools, materials, and surrounding hazards without constantly squinting.
The Importance of Base 4 Curvature: These glasses feature a moderately curved Base 4 frame design. Usage Tip: This geometry provides an excellent platform for prescription lenses, minimizing peripheral image distortion often associated with highly wrapped sports frames. Although the frame uses a Base 4 profile, Bollé Safety integrates clear side shields to maintain full particle protection, delivering an ideal balance of style, optical accuracy, and workplace safety.
Do you have questions about Bollé's Cobalt Mirror polarized lens technology or need assistance fitting prescription lenses to the STKS frame? Our experienced support team is always available to provide expert technical guidance and assistance: +30 28210 87 733.
Specification Verification: The technical specifications, Cobalt Mirror Polarized lens technology, recycled material content (65%), weight (28 g), integrated clear side shields, frame dimensions (57-17-128 mm), and AS/NZS 1337.1:2010 certification have been fully verified and are based on the official Bollé Safety factory specifications.
