Any good tricks or tips to get canvas tennies white?

I'm talking white-white - Regular washing just leaves them looking dingy & bleach breaks down the fabric & also leaves yellowish stains.

Answers:
Soak them in BIZ for several hours. That will do it.

You can also scrub them with dishwasher detergent (the kind you use in an automatic dishwasher).

Other answers:
Soak them in bleach water and detergent.take an old toothbrush and scrub the hard to reach spots....run them through the wash and then...let them air dry.
Soak them in bleach water and detergent.take an old toothbrush and scrub the hard to reach spots....run them through the wash and then...let them air dry.
Replace them with a new pair. That costs less.
Oxiclean...clean them with a solution..and let them air dry...

or Shu-Nu i purchased it online and it works excellent!(for any type of shoes/fabrics)

I have hand stitches pictures which I need to clean without getting them wet with water 'cause yarn bleeds
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