You'd better be somewhat beefy.

This easy-to-put-on armband fits both generations of the iPod nano (a bigger version that fits all 5G iPods is available for $34.95), and it works with the Nike + iPod Sport Kit - it even includes a handy shoelace pouch for the sensor half of the Kit. With the armband's sewn-in soft-plastic screen protector, your nano won't get scratched; more importantly, you'll be able to see your nano's display, a boon for Sport Kit users. The pocket behind the nano pouch holds a key or some cash.

No need to buy new shoes.

Not everybody wants to buy a new pair of shoes in order to use the Nike + iPod Sport Kit. Plus, we runners can be a finicky lot when it comes to our choice of shoes; some of us would rather run in Doc Martens than encase our feet in - ugh - Nikes.

In this armband, your 'Pod's running blind.

We really wanted to like the stretchy, breathable Nike+ Sport armband - and, actually, while running with it all was well. Like most Velcro-based armbands, it may be a bit difficult to put on, but once it's on it feels comfortable and fits securely (though it might be a bit loose if you're a skinny-armed runner).

Small, light, and highly encouraging.

Nike and Apple have teamed up to provide a powerful motivational tool for both seasoned athletes and casual runners: the Nike + iPod Sport Kit. Along with its companion Web site, www.nike.com/nikeplus, the Sport Kit will track your runs, help you set and meet goals, and even partner you with others in group challenges.