This two-glove series is defined by extreme flexibility with a nitrile coat for abrasion resistance and additional dry or wet slip resistance. BK529 features nitrile dot for even more grip. Wear this glove snug and let it stretch with each move of the hand. 


About the glove 

The BK520 and BK529 are desireable for their flexibility. These 15-gauge knit gloves are 20% thinner than comparable 13-gauge coated gloves. Plus, this series features a nylon/spandex construction, which allows for even greater fabric stretchability. Wearers will appreciate the snug fit of this glove for work requiring finer detail and dexterity.  

We finished the BK520 and BK529 with a full foam nitrile coating. Nitrile foam features millions of micropores, channeling liquids—including light oil—away from the glove surface. 

The BK529 features raised nitrile microdots on the full palm and fingers for increased durability and wear resistance, increasing glove wear life. 


  • Protective black foam nitrile coating on full palm and finger areas. Foam coating, compared to smooth coatings, improves slip resistance and “breathes” for better ventilation. 
  • Raised nitrile microdots increase glove durability and increase slip resistance in wet applications. 
  • The 15-gauge, machine-knit, nylon/spandex shell is very stretchable and thus very flexible—made to fit snugly. Ideal for applications calling for finesse and detail. 
  • A knit wrist—seamless and stretchable—provides a snug fit and prevents dirt, debris, and cold from getting inside glove. 
  • Color-coded cuffs indicate glove size.

Roll Up Your Sleeves and Tear In

SMARTFLEX BK520 Brochure (pdf)

Brass Knuckle Hand Protection Catalog (pdf)

Brass Knuckle Sorter