I saw this on-line and knew I had to try it. I bought the pattern here and used this great tutorial to help me. It was fun to make, with the only tricky part using a separated zipper that needed the pull re-attached after sewing. The pattern describe several sizes, and is easily adjusted to suit the size of any device really. I started with my laptop, a MacBook Air and used a fun dog fabric. You can choose any batting to add between the fabric layers, tho I love By Annie Soft and Stable. It’s a fabric covered foam which quilts beautifully and gives a nice cushy bag to protect any device.