The WEKNIFE Sylox Flipper and Button Lock Knife is a premium folding knife designed for enthusiasts who value high-end materials, refined craftsmanship, and smooth mechanical performance. Built with a titanium frame, FatCarbon fiber inlays, and a 3.8-inch M390 blade, this knife sits firmly in the upper tier of modern everyday carry tools. It balances aesthetics and function in a way that reflects WE Knife’s reputation for precision manufacturing.
Design and Overall Build
The Sylox features a clean, modern design that avoids unnecessary aggression while still looking purposeful. The overall length is just under nine inches, with a blade length of approximately 3.8 inches, placing it comfortably in the full-size EDC category. When closed, it remains compact enough for pocket carry without feeling bulky.
The knife feels solid and well-constructed, with tight tolerances throughout. There is no blade play, no rattling, and no sense of looseness anywhere in the frame. Every component feels intentional and carefully assembled, which is exactly what buyers expect at this price level.
Blade Steel and Performance
The blade is made from Böhler M390 stainless steel, a premium powder metallurgy steel known for exceptional edge retention, corrosion resistance, and wear resistance. This steel is well-suited for daily carry, especially for users who want a blade that holds an edge for long periods without frequent sharpening.
The blade shape is a drop point with a compound grind. This geometry offers excellent slicing performance while maintaining strength at the tip. It performs well on common EDC tasks such as cutting cardboard, rope, plastic packaging, zip ties, and food preparation. The cutting edge comes sharp out of the box and maintains its edge through repeated use.
The finish on the blade is polished bead-blasted, giving it a refined appearance while helping mask light scratches from everyday wear.
Handle Materials and Ergonomics
The handle combines 6AL4V titanium with FatCarbon fiber inlays, creating a visually striking yet functional grip. The titanium provides structural strength and durability, while the FatCarbon fiber adds texture, grip, and a premium aesthetic that stands out without being flashy.
Ergonomically, the Sylox is very comfortable in hand. The handle contours fit naturally in the palm, and there are no sharp edges or hot spots during extended use. Jimping is subtle but effective, providing additional control without being abrasive.
The balance of the knife is excellent, with weight evenly distributed between the handle and blade. It feels secure and controlled during cutting tasks.
Action and Locking Mechanism
One of the highlights of the Sylox is its flipper deployment paired with a button lock. The blade rides on caged ceramic ball bearings, resulting in an exceptionally smooth and consistent action. The blade opens effortlessly with a light press of the flipper tab and locks up solidly every time.
The button lock is intuitive and user-friendly. It allows for easy one-handed operation and keeps fingers safely out of the blade path when closing. Lock engagement feels positive and secure, inspiring confidence during use. There is no noticeable lock stick or hesitation.
This combination of smooth action and reliable lock makes the Sylox enjoyable to use repeatedly throughout the day.
Carry and Everyday Practicality
The knife includes a titanium pocket clip designed for tip-up carry. The clip holds securely to the pocket without being overly aggressive, making it suitable for both jeans and lighter fabrics. The overall profile is slim enough to disappear in the pocket while still providing a substantial grip when deployed.
At just over five ounces, the Sylox has enough weight to feel premium and solid without being tiring to carry all day. It strikes a good balance between durability and comfort.
Real-World Use Impressions
In daily use, the Sylox performs exactly as a premium EDC knife should. The blade geometry and steel make cutting tasks efficient and controlled, while the ergonomics reduce hand fatigue. The smooth action encourages frequent use, and the button lock makes operation safe and convenient.
This is not a hard-use survival knife or a pry tool. It is a refined cutting instrument designed for people who appreciate quality materials and precision engineering. Used within its intended role, it excels.
Conclusion
The WEKNIFE Sylox Flipper and Button Lock Knife with titanium and FatCarbon fiber handle and a 3.8-inch M390 blade is a well-executed premium folding knife that delivers on both form and function. Its high-quality materials, smooth action, comfortable ergonomics, and reliable lock make it a standout option in the high-end EDC market.
For users looking for a sophisticated, dependable everyday carry knife that feels as good to use as it looks, the Sylox is a strong and compelling choice.
