In a high stress area like that it can help to add a patch (maybe material from a similar pair that's already destroyed) on the inside and then sew the hole closed across the patch in a quilting fashion or sort of like a less decorative sashiko pattern
Sewing, Repairing and Reducing Waste
A place to share ideas, knowledge and creations with textiles. The focus is on reducing waste, whether that be sewing from the scraps left from other projects, using the end of rolls and remnants, or repairing and remaking finished pieces.
Patch it ? You can sacrifice one pant to donate patch material to save the others.
I find doing it by hand is easiest, as wrestling the pants under the machine is tricky. If you want a less visible mend, you can put the patch behind the broken fabric, at the cost of durability.
Press on patches also exist and seems to work fine, I don't have a lot of experience with it though.
One recommandation for patches in general, is to cover a much bigger area than the hole, otherwise you might have to redo it very soon.
If you want a less visible mend, you can put the patch behind the broken fabric, at the cost of durability.
Silver lining given the location of the hole, seeing the mend shouldn't be too much of a concern! 😅