3D Puff Embroidery is a highly popular and modern technique used to give designs a striking, three-dimensional effect. Unlike traditional flat embroidery, this method achieves its distinctive raised appearance by stitching thread over a layer of soft, dense foam (EVA foam). When the embroidery machine covers the foam, the thread is tightly packed, forcing the foam upward and creating a bold, tactile, and highly dimensional look that literally stands out from the surface of the garment. This technique has become a staple in athletic apparel, streetwear, and, most notably, customized headwear.