I've got a pair of jeans about 6 months old, so starting to look a bit rough now anyway.
They are cotton/poly/elastane 79%/20%/1% mix.
What's the best way?
If I put them in bleach in a bucket, they'll end up streaky.
I don't fancy putting them in the bath, it'll take a month to clean it 
In my mums day they used Vim powder- would that work?
I'm not going to explain <strong>why</strong> I want to do something so eyewateringly untrendy. Maybe I'm having a minor mid-life crisis and it's cheaper than buying a Harley Davidson <img loading="lazy" class="inline-flex mumsnet-emoji" alt="Grin" src="https://www.mumsnet.com/build/assets/grin-D7Eg_B6y.png">