If your looking to put this on a back rest (ie Road king back rest) I have the nelson riggs pack CTB950. It can hold 3 days worth of clothing for 2 without a problem. (Trust me I know)

Here is the link to the one I have

http://www.nelsonrigg.com/pages/Crui...CTB950-Big.htm

 

I am very impressed and happy with the Kuryakyn Grand Traveler.

The wife and I can pack enough for a week.

 

http://www.riverroadgear.com/rrweb2....E?opendocument

I bought the River Road Trolley bag with matching duffle.
I especially like it because of the padded laptop sleeve.
The main baghas enough room for computer, leathers, and a few clothes for myself.
I can hand the duffle toThe Countessand say, "You can takewhatever you canfit in this bag."
Both bags come with rain covers.
Both bags hold their shape if empty.
The main bag sits on the detachable luggage rack and velcros to the detachable passenger backrest.

Rain suits, tools, etc.take up most of the saddle bag space.

 

Have any of you guys tried these? http://cgi.ebay.com/ebaymotors/SADDL...mZ140180028464
I have a Dakota T-bag and it is top quality. Maybe this would fit the bill.

 

I really appreciate all the input. I'm thinking I'll just use an old carry-on bag and look for a deal when I get to Daytona. It's hard to buy stuff like that online anyway. I like to see what I'm paying for before I buy it. If I find what I want, I can just throw away the carry-on. Thanks again for the advice!