the typical leather jacket is 1.2 to 1.4 mm thick. i have a mesh jacket that i used before my leather and I'll never go back. I've personally seen mesh in a low side and see it melted into the guys arm and etc. . i doubt the mesh has better tear resistance, the whole thing i weaved together so I can't really see it being tear resistant at all.
also the leather WAS thicker expect after the crash i slid on my upper back and arms 15 feet and ive also low sided at about 40 before that which didnt help.
i think what cut me was the right side mirror as there were huge sharp pieces on the rode. an glass when broken can be sharp as a razor blade. I'm confident if i didn't have the leather jacket my wound would of bin deeper and done serious damage to tendons and ligiments and lead to not being able to use my left hand. My ER doctor said the cut was "INCREDIBLY clean like a knife wound".
hope this helps
i do believe he was referring to a textile ..... not the mesh jackets... he wanted to know if textile would have held up or how it would have stacked up in the same scenario