I have used several differennt mats, then saw an ad for an
Alvin mat for cutting and drawing.
It is self healing and its the best I have tried I think it comes in clear (mine) and green and different sizes. Just look it up on the net and you will find different sellers.
I got mine at Hancocks on sale and wouldn't trade it for any other type of mat. It is thicker that the Olfa.