She said is is a combination of aftershave and sweat. It wasn't a problem while they were together, but now, well, unhappy memories. We also have a recommendation of wasing with vinegar.I'm curious as to what is actually causing the smell though.
If it's sweat/body odour or deodorant/cologne it ought to have washed out.
That's the trick, wash and lots of UV did wonders for my recycled army bits in the pastWhen I acquired some army wool blankets they'd been stored with a camphor type agent and absolutely reeked. So much so to drive home with them from Wales they had to be stored double bagged in bin bags and even so my car stunk.
All I did to get rid of the smell was to wash it at a cool temperature with a gentle liquid soap then leave outside on the line for a couple weeks in rain and sunshine to let nature do its job. Took a little while but the smell went with minimal effort on my part.