Collection: C4 Envelopes

C4 Envelopes for Mailing A4 Documents Flat and Unfolded

C4 envelopes are designed to hold A4 documents flat, making them ideal for certificates, contracts, reports, forms and presentation materials. Suitable for offices, schools, legal teams, accounts departments and professional correspondence, they help keep pages neat without folding. This range includes practical options for regular business mail, filing and document delivery. Choose C4 envelopes by closure style, window option, paper type and pack size to suit your mailing needs.