Remittance envelopes or donation envelopes have very large flaps so the envelope itself can be used as a form to collect important information. The form can be printed on the inside of the flap and the back of the envelope, when the envelope is sealed, the form is hidden. Alternately, 2-way remittance envelopes have a tear-off form that can be enclosed in the envelope before mailing. This type of envelope is commonly used by charities, schools, churches, fundraising groups, or as order forms for businesses. Choose to have your Remittance Envelopes printed with your customized form and avoid having to create an additional enclosure.