What kind of mouse pad should I use with a vertical mouse?

Get a desk-sized cloth mat (around 900x400mm, 2-3mm thick) because vertical mice have a larger footprint and need more room to move. Cloth offers consistent friction without the instability of hard surfaces, and a thin pad keeps your wrist closer to the desk to preserve the ergonomic benefit. Stick with a smooth, simple cloth mat from brands like Glorious, SteelSeries, or Razer—avoid textured surfaces that can mess with sensor tracking.