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The face-hugging Vine, like the rest of the Brass Knuckle™ family of Flex-fit eyewear, is one your workers won’t remember to take off at the end of the day. Popular colors of green and black accent the comfortable and lightweight one-piece, rimless design. Bendable thermoplastic rubber (TPR) temples provide a secure fit without creating uncomfortable pressure points. In fact, these glasses seem to find the precise point at which to touch and hold versus riding up. The Vine’s fit-and-feel is airy, light, and unencumbered. 


Certifications and characteristics
Standard anti-fog protection plus abrasion, chemical, and UV resistance. Meets demanding industry test requirements (ANSI Z87.1+, EN166UV). 

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 Vine
The high-style, one-piece, 7 base curve lens provides clear, crisp, and distortion-free vision while the soft TPR temples provide just enough flex to easily conform to any size head. Polycarbonate lenses in clear or smoke shades block 99.9% of the sun’s ultraviolet rays. 


  • One-piece, 7 base curve lens in clear or smoke 
  • Polycarbonate frame 
  • TPR temple in green and black 
  • ANSI-rated hardcoated polycarbonate lenses 
  • Standard anti-fog protection 
Part Number Anti-Fog Lens Color Frame Color Accent Color
Standard Clear Black Green
Standard Smoke Black Green

Roll Up Your Sleeves and Tear In

BKFLEX-4030 Brochure (pdf)

Brass Knuckle Eye Protection Catalog (pdf)