Agree with #2 response, NO comparison,,,i have the line x and sometimes carry sharp tools in the back , unsecured , as in axe , splitting mall and ditch blades , o effect on the line x, no chipping. The only thing I must watch is when I carry my golf clubs in the back with out the heads coverd as the line x will actually scratch them. So if you think about it , that actually a compliment to ruggedness of the line x.