Heibel Invictus Balisong #90 Acid Stonewash Damasteel/Light Green Titanium HKI090

Built for fluid motion and absolute control, the Heibel Invictus Balisong #90 is a purpose-driven design that reflects the true spirit of balisong performance. Butterfly knives aren’t about simple utility—they’re about precision, rhythm, and the seamless flow of movement, and this model delivers on all fronts with a finely tuned balance and responsive feel.

The 5.51" Damasteel blade features a deep acid stonewash finish, giving it a rugged, shadowed appearance while showcasing the intricate layered patterns within the steel. It’s paired with light green anodized titanium handles that bring a fresh, vivid contrast while maintaining the strength and lightweight durability needed for high-level flipping.

The Invictus design builds on the strengths of earlier Heibel models, refining ergonomics and handling characteristics for improved performance. The handles have been slimmed down to reduce overall bulk, while extended jimping and carefully machined chamfers create a more natural, rounded grip. These refinements allow the knife to sit comfortably in hand while maintaining confident control through fast transitions.

Internally, increased washer thickness allows for a reduction in blade weight, enhancing balance and making the knife feel quicker and more agile. Stainless steel bushings and phosphor bronze washers provide consistently smooth action, while tang pins and a redesigned blade tang eliminate interference during complex flipping sequences. A latchless design keeps the profile clean and distraction-free, and weight-reducing cutouts further improve responsiveness.

Each knife includes a custom metal certificate of authenticity along with a cloth drawstring pouch, reinforcing its premium build and attention to detail.

Proudly made in the USA, this balisong stands as a testament to precision craftsmanship. It’s available at Smoky Mountain Knife Works, the world’s best online knife store and a true Tennessee landmark. Located in the heart of the Great Smoky Mountains, SMKW welcomes over 1.5 million visitors each year to its legendary showroom, making it a destination worth experiencing.