Grip for Kuru Toga Advance Upgrade?

Recently got the Kuru Toga Advance Upgrade after having the Advance for a while and was disappointed to find it is a plastic sleeve that looks metallic. I love the way it writes and feels, but the grip does not match the quality of the rest of the pencil.

Any recommendations for a textured grip that doesn't look silly?

Other pencils in my rotation are Orenznero and Rotring 800+ and I like their grips (bc metal).