Long lasting and can be used for safely packing important documents. Owing to their cloth lining, the envelopes will not tear or open up, which makes these quite dependable for long distance dispatch. Business-ready envelope styles in sizes and weights to fit every need and industry. This envelopes prevents viewing inside contents through the closed envelope, even when it’s held up to the light. Send checks, invoices, financial information, or other confidential documents without having to worry about compromising sensitive information.