Our SmartFlex™ BK350 provides allover protection from liquid penetration while your hand gets cozy in our soft polyester seamless knit liner. 


About the glove 
Soft and seamless means long wearing comfort and nothing to rub or chafe. But the deal sealer here is BK350’s ability to seal out liquids and keep hands dry, making them less prone to skin diseases. Our durable natural latex coating covers the full front and back of the hand, while an additional double dip of latex foam on the palm provides excellent grip, abrasion resistance, and tear resistance. Latex is not recommended for oily applications, but this glove is an excellent dry or wet gripper virtually anywhere else.

Like all Brass Knuckle® gloves, BK350 is made to fit comfortably. Fingers are tapered and curved. Sizing is carefully considered and gloves are manufactured to the highest tolerances to ensure flex points match up to the wearer’s knuckles.


  • Full foam latex coating (light blue) all over with a second coat of latex on palms and fingers. Sandy finish. Offers high elasticity and outstanding dry and wet grip. Durable, with improved puncture resistance. Coating remains soft in cold conditions.
  • For wet-grip applications, sandy finish creates more gripping surface, improving slip resistance. Also enhances abrasion resistance.
  • 15-gauge, 100% polyester knit liner feels soft and provides superior warmth without bulk. Resists shrinking when laundered. Breathable and stretchable. Excellent tear resistance.
  • Loose fitting for improved insulation, but excellent grip surface enhances tool handling.
  • A full knit wrist — seamless and stretchable — helps prevent dirt, debris, and cold air from getting inside glove.
  • Color-coded cuffs indicate glove size and simplify re-issuing.

Roll Up Your Sleeves and Tear In

SMARTFLEX BK350 Brochure (pdf)

Brass Knuckle Hand Protection Catalog (pdf)

Brass Knuckle Sorter

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