I started with a dark indigo denim jacket with classic lines we found at a thrift shop, washed well (for the obvious reasons, plus, my daughter is actually allergic to the scented detergent used by my favourite thrift shop).
avoid the use of detergents or dry-cleaning solvents that will remove the wax finish. This means the default suggestion comes from the world of raw denim: seal it in a plastic bag and throw it in the freezer to kill bacteria. Of course, you can always repeat what we did to re-coat the denim if you wash it and the wax gets stripped off.
Note: This post is part of my #30DaysOfMaking Challenge.