ThatGuy333According to Spyderco, it's made of Kirinite. "Kirinite™—an incredibly durable acrylic sheet material that resists cracking, chipping, warping, and shrinking. Although finished to a high polish, Kirinite scales are never slippery and complement the ergonomics of the Manix 2 XL’s handle to ensure a secure grip in all conditions."
semka"resists cracking, chipping" hah, it doesn't in my experience, kirinite is actually pretty brittle, but i'm just a salty person who broke a glow kirinite scale that I was making right when I was about to finish it