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Yellow that’s far from mellow. Choose either SunBurst (clear lens and a one-color bright yellow temple) or SunSpot (smoke lens with a two-color, co-extruded molded temple in yellow and black) for a sporty, ultra-comfortable spectacle weighing less than an ounce. TPR temples feature Brass Knuckle’s TempleTouch™ technology, featuring raised rubber nibs molded into the temple tip to provide a gentle but firm grip. 


Certifications and characteristics 

Standard anti-fog protection plus abrasion, chemical, and UV resistance. Meets demanding industry test requirements (ANSI Z87.1+, EN166UV, CSA Z94.3 and CE EN 166) 

Clear lens allows maximum light transmission without changing or distorting vision or colors (91% of light passes through). 

Smoke lens provides allover tint for normal outdoor conditions (18% of light passes through). 

About the SunBurst/SunSpot

Ideal for electricians or others who operate with or near live currents, both models are dielectric (assembled with our screwless design). This ultralight protective eyewear encourages compliance by modeling popular sunglass styling. A one-piece, 10 base curve, wraparound polycarbonate lens provides superior coverage, unobstructed peripheral vision, and maximum protection, while the soft TPR temples provide a secure and comfortable fit. Tough polycarbonate lenses offer impact resistance and block 99.9% of the sun’s ultraviolet rays. 


  • One-piece,10 base curve lens for wraparound protection 
  • Ultra-lightweight, weighing less than one ounce 
  • Comfortable and secure TPR temples with TempleTouch™ for gentle-grip fit 
  • ANSI-rated hardcoated polycarbonate lenses 
  • Integrated side protection 
  • Standard anti-fog protection 

Part Number Anti-Fog Lens Color Frame Color Accent Color

Clear Yellow N/A

BKFLEX-3100S  Standard Smoke Yellow Black

Roll Up Your Sleeves and Tear In

SUNBURST BKFLEX-3100 Brochure (pdf)

Brass Knuckle Eye Protection Catalog (pdf)