Blank Patch Fabric Sheets For Making your own Embroidered Patches.These 15″ x 15″ blank patch material squares are made from a tackle twill fabric with a buckram canvas backing and are perfect for makingpatcheson your embroidery machine. These are the same quality as our finished patches but without a border. You can cut any size or shape of of this material tomake your own custom patchesfor embroidery machines. Patch material is a 50/50 Poly/Cotton blend.