Jeans machine darning, less visible (for me)

What I did:

Before

I had some jeans with holes and worn fabric in the backside/inner thigh.

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Before: my jeans had an inner thigh hole

Before: the fabric in the entire inner thigh/backside area was quite worn

After

I used the almost-invisible technique of interior patches plus machine darning with close to matching thread.

After: machine darning on the back inner thighs

After: closeup of backside of jeans showing machine darning and faint outlines of interior patch stitching