Do the fenders come with any inner liner or protector?

At Shift we aim to build products that are both functional and nice looking. We understand that everyone has their own tastes and preferences, but no one can argue with practicality. Shift uses an advanced rubber lining on the inside of our fenders. We understand the beating that fenders take from rocks and debris and have lined our fenders to withstand the worst. Our fender liner retains its rubbery surface even in severe freezing temperatures and was designed to withstand everything from: rocks, debris, and salt to chlorine and acid.