Add 3-dimensional flair and excitement to your computerized embroidery, free-motion and machine satin stitches by using Sulky 3MM Puffy Foam. It perforates cleanly when stitched through and makes the stitching stand well above the fabric. Puffy Foam is made from high quality ethylene vinyl acetate foam made just for use on home sewing machines. It is acid-free, non-toxic and water-resistant. It is widely seen commercially in headgear and washable wearables. Sulky embroidery Puffy Foam is available in 2mm and 3mm thickness.