The following is a list of my favorite and reliable material sources.
Apparel City Sewing Machine Co., Inc.
Best and quickest sewing machine repairs, some sales. Excellent source for threads, rulers, and some other sewing supplies.
https://www.apparelcitysf.com/
Buckskin Leather Co.
Some of the best leathers and widest selection of hides. The prices are good for the quality. Shipping is fast, Customs adds a few days for USA shipments.
https://www.buckskinleather.com/
Frank’s Leather & Hides
This has a wide variety of kinds of leathers and quality of leathers at a reasonable price for being in San Francisco.
They are very old school. Sometimes hard to contact on the phone. Best to go in person.
3077th Street, San Francisco, California, 94110 | (415) 551-1405
The Hide House
Excellent leathers at good prices. Helpful staff on phone/on line.
Ottlite
The best lights for seeing true colors. Also available through Amazon.
PacCana Enterprises Ltd.
They are the least expensive, good quality sewing supplies; cutting boards, rotary cutters, rulers, zipper, elastic, Kaska (jacket lining), batting, canvas, cording, snaps, eyelets, studs, Chicago screws for leather, etc.
Sav-Mor Leather & Supply
OK quality leathers and some snaps, rivets, rings, buckles, etc. with good prices. Rough neighborhood and the street parking is bad.
United Leather
Good quality leathers are good prices. Very wide selection of leathers and helpful staff. Park in their driveway to shop, it is a somewhat shady neighborhood.