How to avoid wear and tear on pants at the crotch?

Crotch chafing is often caused by constant rubbing between your legs and pants, as well as factors such as fabric quality or design. To prevent this, it's advisable to wear pants with less stretch, apply fabric-protecting sprays, and choose thin underwear or long johns (especially in winter) that reduce friction.

If your pants are already showing wear, patches are a good solution to reinforce the area and extend the garment's lifespan.