Extrema Ratio Kreios Fixed Blade Knife With Sheath

EXTREMA RATIO KREIOS: THE ULTIMATE OFF-ROAD FIXED BLADE KNIFE

Born from a collaboration between Extrema Ratio’s master designers and Daniele Dal Canto, Master Instructor of the Italian Survival Federation (F.I.S.S.S.), the Kreios redefines what a fixed blade knife can do. Dubbed the “off-road” of edged tools, this knife excels wherever adventure calls: carving through dense underbrush, dispatching heavy fieldwork, and standing ready for defense. The Kreios isn’t built for a single task—it’s engineered to conquer every challenge you face outdoors.

From the moment you grip the Kreios, you’ll feel its purpose-driven design. The 11° downward blade-to-handle angle aligns natural chopping strokes, reducing fatigue and amplifying each swing’s power. At 22.6 ounces, its balanced weight transforms every cut into a confident, controlled motion. Whether limbing a fallen pine or slicing through brambles, the Kreios glides through resistance with surgical precision thanks to its full-flat grind and 12.8-inch cutting edge.

When the trail demands more than light trimming, the Kreios answers the call. Its 6.3 mm thick Böhler N690 steel blade, hardened to 58 HRC and finished with MIL-C-13924 burnishing, resists corrosion and retains an edge under the most brutal conditions. From felling saplings for a shelter to splitting firewood for a campfire meal, this blade stands up to tensile stress and repeated impact without hesitation.

Safety and readiness are never compromised. The MOLLE-compatible sheath and adjustable shoulder carry belt keep the Kreios secure and accessible, whether strapped to your pack or slung over your shoulder. In an emergency, this knife’s robust profile and razor-sharp blade transform it into a reliable tool for self-defense or tactical scenarios.

Extrema Ratio’s reputation for excellence dates back to 1997. Each Kreios blade begins as a 3D-modeled design, moves through rigorous field testing, and ends with hand assembly by Italian artisans. The result is a knife that balances modern technology and time-honored craftsmanship—every detail measured against the company’s uncompromising standards for performance, durability, and value.

Equip yourself with the Extrema Ratio Kreios and experience a fixed blade knife that meets the demands of survival experts, military professionals, and outdoor enthusiasts alike. When no ordinary knife will do, trust the off-road legend that’s engineered to perform.

Key Features and Specifications
• Blade Material: Böhler N690 stainless steel, 58 HRC – exceptional edge retention and corrosion resistance
• Overall Length: 18.7 in (476 mm) – maximizes reach for clearing and chopping
• Cutting Edge Length: 12.8 in (324 mm) – full-flat grind delivers razor-sharp performance
• Blade Thickness: 0.25 in (6.3 mm) – robust feed for heavy-duty tasks
• Blade-to-Handle Angle: 11° downward – optimizes chopping power and wrist alignment
• Weight: 22.6 oz (642 g) – balanced heft for control and momentum
• Handle: Ergonomic Forprene® grip – non-slip comfort in wet or dry conditions
• Finish: MIL-C-13924 burnishing – enhances wear resistance and reduces glare
• Sheath System: MOLLE-compatible with safety carry belt – versatile mounting and quick deployment
• Origin: Designed and hand-assembled in Prato, Italy – precision craftsmanship and rigorous quality control