Serged seams are a type of stitch used in sewing that creates a clean, finished edge on fabric. This technique is commonly employed to prevent fraying and to provide a professional look to garments. A serger, or overlock machine, is typically used to create these seams, which can sew, trim, and overlock the fabric in one step. The serged seam is particularly popular in the construction of knit fabrics, as it allows for stretch without breaking the thread. This makes it ideal for items like t-shirts and activewear. Overall, serged seams enhance durability and appearance in various sewing projects.