AERO

LOOK.
The colored dot on the pivot is the visible signature of a knife that has eliminated everything unnecessary. The point where the tension of the entire design converges. You understand it before you even realize why you’re looking at it.

THINK.
For thirty years, Extrema Ratio has built knives for those who operate where tools cannot afford to fail. Then one day, a question emerged: what would a knife look like if it were created for someone who appreciates both EDC and beauty, without compromise?

IMAGINE.
Antoine de Saint-Exupéry once said that perfection is achieved not when there is nothing more to add, but when there is nothing left to take away. The answer takes the shape of a profile the wind passes through without resistance.

FEEL IT.
Then, the moment you touch it, you understand that lightness is not absence. Every gram is exactly where it belongs. Every missing line was removed on purpose. This is beauty taking shape.

Built to last. Easy to maintain.
Anticorodal aluminum handle. Nitrogen steel blade: superior corrosion resistance, edge retention that exceeds the demands of everyday use, and ease of sharpening that requires no specialized equipment. Maintenance reduced to the bare minimum. Because a tool that asks too much eventually stays in the drawer.

One thing that changes everything.
The scales of AERO and AERO FX are designed to be interchangeable. With just a few simple gestures, within anyone’s reach, you can change their color whenever you want. Today Black Lime. Tomorrow Blue Orange. The day after, the combination you created yourself.

Choose yours:

AERO NITROGEN BLACK LIME: The lime detail is a jolt that catches the eye before the mind understands why.
AERO NITROGEN BLACK ORANGE: Contained warmth against a matte black background.
AERO NITROGEN BLACK BLUE: The deep magnetism of electric blue emerging from the shadows.
AERO NITROGEN MUD ORANGE: Tones that reveal themselves only in the right light.
AERO NITROGEN FOREST GREEN ORANGE: Green that doesn’t shout. Orange that answers.
AERO NITROGEN BLUE ORANGE: The boldest contrast in the collection. The result is pure visual tension.

Extrema Ratio. Since 1997.
Every knife leaves our workshop in Prato with a lifetime warranty. A commitment we honor every single time, without exception, wherever in the world it was purchased.

MAKE IT YOURS.