This Twitch XL (TWI-21) has a TiNi finished AUS-8 stainless steel blade with a plain cutting edge. The slim handle has black anodized aluminum scales.
The Twitch utilizes SOG Assisted Technology¢ for quick one-hand opening with the kick flipper or dual thumb studs. The safety switch makes this spring assisted knife even more safe for carry. The Twitch XL locks up tight with the lockback mechanism. The pocket clip is reversible, making this an excellent knife for ambidextrous use.