Ikea Ektorp seat cushion

Hello,

I wanted to wash the covers of my Ikea Ektorp after 2 years. Now I have noticed that the interior is yellowed. But only the seat cushions; the upper cushions look fine. Now my question is, can these inner cushions be bought new? And how expensive would they be?

Thanks for the help

They cannot be repurchased. Foam yellows over time and that is not a problem.

Thank you for the answer.

Here is a photo. That already looks strange, is that really normal?