Martelli Mats are my favorite mats. So hard to describe, they are much thicker (and therefore heavier, if that is a concern) and feel almost softer when cutting. They can be rolled, left in the car without warping, and don't crack if dropped. DH dropped my Olfa when it had been in the car and was cold, it cracked in half.
They are two-sided, one side purple, one side soft yellow. You can also iron on them, as long as there is fabric between the mat and the iron (ie, don't go past the edge of the fabric you are ironing if you don't have another, larger piece under).
Tues. and Weds. only, they are on sale for 1/2 off. Still not inexpensive, but a better deal for sure.
https://shop.martellinotions.com/cutting-matts.html