The Best Way to Fix Your Ripped Jeans

This method uses a sewing machine. If in a grid-down situation, you'll obviously have to adapt to  a hand-sewn method.

The Best Way to Fix Your Ripped Jeans
https://www.gq.com/story/the-best-way-to-fix-your-ripped-jeans

  Let's face it, crotch blowout is very real, not to mention the torn corners your back pockets get from all that wallet friction (you baller). But unless you're cool with pre-worn-in denim, which is to be honest rarely done well (see A.P.C. or 2015 BNMDA-ers NSF), your rate of success at wearing-in your jeans is dangerously close to your rate of destroying certain parts of them. There are too ways to deal with this. You can seek the professional help of a tailor or specialty denim repair service. Or, if you can't wait and don't want to pay, you can repair those rips, holes, and tears yourself. With a little knowledge, patching your own jeans isn't all that tough and can be pretty satisfying. To ensure your patches will last, you'll need to combine iron-on technology (heat + pressure + special glue) and lots of sewing. Here's a detailed description of how it works.   ---CONTINUED---