These embroidered USA military flag patches are easy to use. For military uniforms, just sew them on following the uniform's style guide. If you're adding them to caps, vests, bags, or packs, use a strong thread or a fabric glue. When it comes to maintenance, avoid machine - washing these patches directly. Instead, gently spot - clean them with a mild detergent and water. Keep them away from sharp objects to prevent any damage. That way, your patches will look great for a long time.