👉 In sewing, a "round seam" is a type of stitch that creates an "S" shape when sewn together. It's often used to create decorative or functional elements on clothing like seams and hemlines. Round seams are typically made by stitching two pieces of fabric together at their corners. The term "round seam" refers to the roundness of the stitch itself, with a more rounded look than a straight seam. This makes it useful for creating an aesthetically pleasing and practical finish