I fixed these holey jeans for my 12 year old nephew.
First, I re-enforced the knees that were falling apart.
Then, I patched the outside to just look cool!
I cut off the ends of each leg to add some length because he is getting taller, but not wider! The extentions probably added an inch to an inch and a half.
I exchanged one of the pockets for a darker, homemade one to match the patches.
I will try to get a picture of him in them when I see him next.
My 6 year old refused to model them for me!