Darts vs. Pleats: A Guide to Sewing Details That Enhance the Finish of Your Garment. When looking at clothes, you may notice cases where they look similar yet have completely different silhouettes or vibes. One of the key elements that creates this difference is darts and pleats. While both are sewing details created by folding fabric, their purposes and effects are entirely different. Today, for beginners, I will easily summarize the differences between darts and pleats. Darts – A detail that creates a body-fitting silhouette. Darts are created by folding and sewing fabric into a triangular shape, serving to shape the silhouette along the body's curves. They are primarily used on curved areas such as the chest and waist. By creating a three-dimensional form, they help the garment fit the body well...