Tuneband for iPod nano 4th Generation, Armband Compatible with Nike+iPod System
This is a great product!! I was looking for something similar to the Belkin arm band for the 2nd gen Nano and this is it. Plus the company has great customer service. I went through a few screen protectors (the screen protectors are a little tricky to place correctly on the Nano) and they mailed some out free of charge.