There's nothing wrong with it but the pits have just accumulated loads of stink over its life. Seems a shame to chuck it away.
I wash it with the dettol wash additive thing and have tried putting some of that directly on it in the last couple for washes but it's not really helped. It seems fine when it comes out of the wash but is pretty offensive after my run (my running top underneath is fine so it's definitely the jacket!)
Can I save it?