from the pattern:

"I got the Nike+iPod kit. This thing is awesome. There’s a little do-jobber that you fit into the end of your iPod Nano, and a remote sensor chip that you’re supposed to fit into the base of specially designed Nike shoes. Welp, I love my New Balance 855s, and I don’t need to buy the special, expensive shoe. There are a bunch of do-it-yourself hacks out there (I found a good list here), but I didn’t see any instructions on how to knit yourself a sensor cozy, so here you go."



and the final word on the subject:

"Isn’t it weird to sew your new toy into a closed cozy? I think so."