Replacement pads for a Smith Engage Helmet

So it appears the pads on my Smith Helmet don't like being repeatedly removed to be washed under a tap and have come apart. Emailed to Smith and they don't sell replacements but I am trying to see if I can get some more through their warranty process.

However is there anywhere else that sells replacement pads? Vaguely remember an article on here years ago about someone selling pads that could be cut into whatever shape was required but can't find it. Other than getting some random pack off Amazon, has anyone had any luck elsewhere?

Thanks