36x30 Rustler Regular Fit Straight Leg Mens Hardworking Denim Blue Jeans Issue

36x30Rustler Regular Fit Straight Leg Mens Hardworking Denim Medium Blue Jeans Issue! New with tags Irregular. Behind left knee, there is run on threads of fabric. No hole. No tear. No rip. See the pictures. The problem is in the weave of the fabric, which is only issue I see. Sturdy, hardworking fabric.