2 inch is the largest standard for cloth backed sewable 3M I think. BTW Ken you're right about that tape seeming as though it throws light directly back at the flashlight, it's exactly what it does. The same strip of ScotchliteŽ you're lighting up from the front won't appear bright to someone seeing it from a different angle. As it does light up Very brightly this is actually an advantage. No need to light up something you don't have a possible collision course with, blind yaself for nothing is all it'd do. 3Ms retroreflective sewable tapes are definately superior, it's all we'll use.