Styles: Rectangle (see images). Material details: Fabric on Inside: 100% Organic Cotton; Fabric on outside: 84% Polyester/ 16% spandex exterior. Note: Not medical grade. Not comparable to N95 masks. This item is sold per piece, not by the pair. Measurements when laid down flat to print: Standard: 4" tall x 7" wide. Ideal for ladies or adults with a small- Medium sized face. XL: 4.8” tall x 7.75” wide. Ideal for adults with a Large or XL face. (Some manufacturer variance does occur and is normal) Heatpress at 400 degrees and 25-30 seconds.