Welcome Bay Thread

Pattern Making Services Pattern MakingSample SewingApparel GradingTechnical PacksApparel Manufacturing

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Apparel Development

Bay Thread offers the development services needed to prepare you for the apparel manufacturing processes. Using your design details we will draft your first sewing pattern. Pattern making is completed to industry standards.

Pre Production

Bay Thread will create the tech packs for your styles which includes technical flat sketches, sewing instructions, bill of materials and any other details needed to ensure your production orders are manufactured with ease.


Bay Thread offers made to order, low minimum manufacturing options. We are also equipped to produce larger orders & get you ready for market with no extra lead times. Turn around times vary from season to season. Call us for current times.

How It Works

Learn the processes create your items avoid costly mistakes

Learn with Eloisa, she explains the processes and gives you helpful tips to ensure you have a successful start to your 1st, 2nd, and every season thereafter. Affordable videos so you have budget to create your styles! Whether you are ready to create an item or just starting to research how to development and manufacture an item our videos are filled with easy to understand information that will take you from concept to final market ready products. Eloisa shares vital tips and information on what to do, how to do it and what to avoid to ensure a successful processes and launch.

About Us

Bay Thread was founded by California native, Eloisa Serrano in 2011.

After achieving a BFA in Fashion Design Eloisa went off to work for designers Margaret O’Leary, Haute Bride, IGIGI, Levis and other independent designers. She applied her fashion design skills, apparel pattern making skills and retail merchandising knowledge to her everyday tasks, which led her to positions in managing local and overseas apparel production. She later applied her gained experience in the areas of fashion design, apparel development and local production to her first venture; a line of dresses. With over 20 years of experience Eloisa has operated Bay Thread, a company focused on helping designers with apparel development and production services. Bay Thread has served thousands of emerging and established designers and Bay Thread’s clients inspire Eloisa daily with their creativity and dedication. “Every designer is unique with their own vision, their own thought processes and they each have their own individual experiences!” It is my job to ensure we provide a seamless service that makes the detailed oriented processes easy and enjoyable! Bay Thread provides guidance to clients with zero industry experience as well as providing individual services for their well established clients.They assist with any size project, one single item or large extensive collections in women’s, men’s, and kid’s wear including bridal, swim, activewear and accessories.




Developed Products


Years of industry experience

“Every designer is unique with their own vision, their own thought processes and they each have their own individual experiences!”

Eloisa , Founder

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