First we cut the Velcro and Velstretch and put them together. It really helps to have all your supplies at hand before you start sewing.
The booties are made out of Cordura, a special fabric I purchased from http://www.dogbooties.com/ Another volunteer sent me the pattern. I used a pinking shears for the top to keep the bootie from fraying (although it's not much of a concern, because the bootie will wear out before it frays).
Then I sew down the right side of the bootie.
This is a completed bootie. The Velstretch (the white strip) wraps around the dog's leg and hooks on to the Velcro (The blue strip). The letter "M" stands for Medium.