After a few months use, noticed a blister forming on the ball of my foot. For a week, I could not figure out what was causing it... shoes were well broken in?

Come to find out the shoe liner completely disintegrated in the shoe... wore down to rough Styrofoam that is paper thin and offers no support.

Stuff happens. So, I called Brooks and asked for replacements (said I would even pay!!) I was informed they do not have that "part." I would need to go to a local store and purchase an "after market" brand.

With all the shoes out there, would pass on these... and would pass on Brooks. You would think shoe liners would be a no brainer... and they are integral to the comfort of the shoe...