I got them from Superior Shave:
This is an effective anti-rust solution for a lifetime; it is not merely a barrier prohibiting entry of moisture, but rather a tool which continually draws moisture from the inside to the outside; think of it as creating a reduced-humidity 'fog' within and beyond the razor, and the more arid the environment in which the razor's stored the bigger the foggy area. Simply store the straight razor inside and leave in the open so that the moisture wicked away from the interior to the exterior can evaporate.
Made for decades by hand in the USA by various American firms for the firearms industry (known as "gun sleeves", "silicone cloths", etc. etc.), these particular oil-and-silicone-treated-cotton sleeves are from 100% USA materials/labor and make oiling steel within potentially irrelevant. The makers say to not oil the steel for any razor stored inside the sleeve, for this can seal moisture under a film of oil (they've also decreed that if one insists on using both sleeve and oil, use a product which allows evaporation-by name they recommended Ballistol).
Attachment 147733
Cheers!
