Voting Question: Which "case" is best for an Ipod Nano?

I feel that if I do not get a case, I will break it! Please everybody let me know which case you have, and if the CASE is better or the SKIN? I was thinking this?

http://cgi.ebay.com/Crystal-Clear-Case-For-iPod-Nano-4th-Gen-Generation-4G_W0QQitemZ300333905970QQcmdZViewItemQQptZOther_MP3_Player_Accessories?hash=item45ed4bb832&_trksid=p3286.c0.m14

Thank you!