Two Versions - Fine and Medium
There are two grades of these towels: a Bowden's Own logo blue coloured Fine Grade (left side of image) for regular use on well kept vehicles that have light contamination, and a light purple coloured Medium Grade (right side of image), for occasional use on cars that suffer from heavier paint contamination or overspray.
We find ourselves using the Fine Grade Towel 90% of the time as it's best for regular use. If you have really heavy contamination then the Medium Grade Towel is there to help, as it will work better and faster for these bigger jobs. Please be aware, that for anyone who is using the Medium Grade, that you possibly need to be following up the Clay Towel process with a machine paint correction, as with its extra cleaning power it has the potential to marr softer paints.