Replying to ARE U KIDDING ME ?

Long story short today i got to test my gear out and the thing that happend to me is the same with matt walkers pants in one of martini's recoverys.They were actually brand new.I fell and when i got up the part next to the zipper was eff'd up.Now i dont have money to spend on other pants , and i need suggestions should i just sew it in again?
I sag my pants  and that was prolly the main reason...im sure that if i sew it up it will rip open again sometime ??