What is inside a Tech Pack and how should I explain my designs? Sewing Seams for Tech Packs is a reference book that focuses on the technical aspects of fashion design. This tool will allow you to not only understand how garments are made, but also how to enrich your skills as a designer. The 27 garment pieces that are developed within this book, are the basis to explain almost any design. We show you in detail how each garment is done, and how to explain it clearly to a factory. By referring to this book when making your tech packs you will save time and avoid misunderstandings. Design like a pro Choose the most appropriate seams for any project, and master the technical issues that are involved in developing garments.