Here's a Crazy idea: Find out directly from the mfg.

"How do I clean my Acorn Bag?
For canvas: Just as you shouldn't wash fabric upholstery or leather products such as shoes, gloves or jackets, you shouldn't dry clean or use detergent on your canvas. Gentle brushing or a damp cloth is best for loose dirt. For a more thorough cleaning, use a hand sponge with a mild natural soap (not detergent) in lukewarm water. Rinse twice with clean water.

For leather: A gentle leather cleaner/conditioner, like Lexol or Fiebing's, is all that's needed. Saddle soap is also a good choice."

https://www.acornbags.com/pages/bag-faq#clean

What's the deal with this retaliative tariff? Why should any special tariff apply to on-shore products?

Carradice, Karrimore or TA products were imports "back when" and subject to the schedule of duties imposed by government on imports that was part of net landed cost. That has less effect now with a relaxation of trade policy, and has never has affected domestic production.

The price/value proposition of domestic manufacturers including being sheltered by tariffs, along with the new generation of innovative products from Cannondale, Eclipse and Kirtland effectively replaced the traditional Euro bag mfgs in the US market by the mid-80's. Not so much anymore....

-Bandera

Thanks to all for the cleaning suggestions. I will pick a process and report back the results.

DD

I remember that, I think it was why in the late 60s UO8s were competitive in price with the Varsinentals, but to use EU parts on the Varsity was too expensive. I think there were tariffs on bike parts that were not appied to finished bicycles. Somehow the "Schwinn Approved got around that, or do I have my eras mixed up?

Although with a great deal of vertical manufacturing going on in the Chicago plant w/ frames, forks, rims, fenders and many other components being manufactured Schwinn tested, Approved and imported Huret derails, Normandy hubs and lots more Euro hardware for their derail bike production. Euro components were common on Schwinn models, as were British SA hubs.

Designed for their American customers, and knowing how teenagers would treat their machine having grown up riding middleweight coaster brake and/or Stingray models, Varsitys and Continentals were built to a totally different design spec than Euro machines. Sheer rugged durability, ease of service and the strength required for Schwinn's famous "Lifetime Frame Warranty" were primary requirements of the designs.

The '70's English made canvas/leather seatbag I referred to in a previous post in this thread is "Schwinn Approved".
The Chicago buyers knew what they were doing "back when" and imported what made sense like the Campag components, Nervex lugs and Reynolds tubes for my '68 Paramount.

-Bandera