STKS 420
STK42N21E
FRAME
CRYSTAL
Smoke safety glasses, crystal
CSP - Design by Light
Visible Light Transmission (VLT)
13%
Lens coating
Tint base
Grey
Technology
Smoke
Technology
Cobalt Flash
- Free shipping for any order over 60€
- Secure payment
- Easy returns for 30 days
Stay sharp and protected with STKS safety glasses, the ultimate blend of style, sustainability, and high-performance eye protection. Engineered by Bollé Safety, these sleek, eco-friendly frames are made to keep up with you and your crew—on site and beyond.
Certified for serious protection and built for all-day comfort, STKS combines cutting-edge technologies with sustainable materials for durability that won’t quit. The modern frame design delivers a sharp, athletic look while keeping your vision clear and your eyes safe.
Need prescription lenses? STKS is also available in prescription to keep you looking on point with sharp vision, no matter where the job takes you.
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Sustainably crafted: 32% (plano) and 52% (prescription) recycled polycarbonate
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Crystal-clear vision with PLATINUM : anti-scratch & anti-fog coating
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Enhanced protection & comfort: Integrated side shields and upper brow protection for superior coverage
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Prescription-ready : Advanced lens treatments and wide prescription adaptability for precise vision correction
Weight
28 g
Frame type
FULL FRAME
Frame shape
null
frame base
null
frame material
RECYCLED POLYCARBONATE
frame colour
CRYSTAL
lens material
Polycarbonate
lens colour
GREY
lens coating
PLATINUM
technology
null
strap material
null
ballistic resistance
null
ATEX CERTIFICATE
null
ATEX HAZARDOUS AREA / ATMOSPHERE GROUP
null
standards
EN166 - EN172
Supplied With
null
Lens dimension (A)
Lens dimension (B)
bridge dimension
temple dimension
CSA Status
FIT GUIDE



BOLLÉ SAFETY &
1% FOR THE PLANET :
We are proud to announce our new membership in the 1% for the Planet network. In alignment with our Environmental, Social, and Governance (ESG) strategy, we are dedicated to making a lasting positive impact on the environment.
In FY25, Bollé Safety will donate 1% of the annual sales from our HUSTLER (Global) and STKS (AU/NZ) product ranges to six non-profit organizations worldwide.
Given the nature of our business, we have focused our efforts on supporting organizations that fight plastic pollution.