Travelon's Pack-Flat Back-Up Bag

is designed to stash nearly flat in a wheeled carry-on bag. Measuring 19 inches by 13 inches, the bag unzips to become a spacious 10-inch-deep carry-on-size bag.

Made of heavy-duty nylon, the bag can be carried by the double-

sewn handles or adjustable shoulder strap.

I would have liked double zippers so the bag could be padlocked. I also wish the shoulder strap were detachable. All in all, though, this is a great extra bag

Pack-Flat Back-Up Bag (22825) is $24.49 at

; 1-800-600-9817.

- Judi Dash