Opened in 1999, Sierra Mills has grown to be recognized as one of the premier embroidery houses in the San Francisco Bay Area. Sierra Mills offers Logo Shirts, Silk Screened T-shirts and the West Coasts largest selection of Promotional Products. Polo shirts, Dress shirts, Caps, Fleece vests, Sweatshirts, Infant/Toddler items, Totes, Jackets and Workwear. All available stitched in high quality embroidery. Or, if you prefer, silk screening is another option and we have the trained and talented staff to produce outstanding results.