👉 The term "outseam" in the context of seam engineering refers to a specific type of seam that is typically used in garment production and sewing. It's also known as a "jacket-seam," which is commonly found on outerwear, jackets, and other garments. In this type of seam, the outer layer of fabric is cut into pieces that are sewn together with a thread or stitch, leaving open gaps at the top and bottom edges to create a more natural-looking seam.