Sleeper

I have a 20 year old Trail Wise "external frame" pack and love it for mediun length trips. I would like to get a new belt and am having trouble finding the manufacturer. Any help? A funny story. Two years ago as I was doing some packing in prep for a five day trip to Mineral King in CA, when I pulled my pack out of my car one of the Younger members of the party (28) asked me "what is the metal for?". I hated to do it but all I could do was laugh. My first pack was a Boy Scout Yucca 35 years ago. I just spent the weekend camping and hiking at Henry Coe State park in the SF Bay area admiring the beautiful wild flowers, animals and the mountians. In three days we did 24 miles with 9,000 total elevation. Scouting never goes away.