One of the most common backpack repairs is doing a patch. In this case, it was basically the entire bottom of the pack. What we did was grab some ballistics cordura, create a patch, and using the Consew 29B, we placed two rows of neat stitching all the way around the patch. The Consew 29B is great for this application. With its cylinder head and 360 degree rotating foot, it allows us to get into tight spaces like the bottom of a pack.