MAILmedia C4 Shipping Envelope, Self-Adhesive, 90 g/m², White, 250 pcs 30003817

Office managers, mailroom staff, and e-commerce packers reach for these C4 envelopes when sending contracts, certificates, or unfolded A4 documents that must arrive crisp and professional. The 324 x 229 mm format accommodates A4 sheets without folding, while the 90 g/m² offset paper keeps contents protected without adding unnecessary bulk.

Key specifications

• Format: C4 (324 x 229 mm) – fits A4 documents unfolded
• Material: 90 g/m² offset paper, white, smooth finish
• Closure: self-adhesive (peel & seal) with pressure-sensitive adhesive
• Window: none – fully opaque for privacy
• Pack size: 250 envelopes per box
• Weight per envelope: approx. 6.7 g
• Recyclable paper, straight flap

Why choose it

The peel-and-seal strip saves time and avoids the mess of moistening glue, while the sturdy 90 g/m² paper resists tearing during transit. The clean white surface is ideal for printing or labelling, and the straight flap gives a neat, professional appearance. Because the paper is recyclable, it supports sustainable office practices.

Ideal use cases

• Mailing contracts, certificates, and legal documents without folding
• Shipping marketing materials, brochures, or catalogues
• E-commerce fulfilment for flat items like prints, photos, or documents
• Internal office distribution of reports and proposals

Good to know

Each box contains 250 envelopes, making it a cost-effective choice for high-volume mailings. The pressure-sensitive adhesive forms a strong bond on contact, so press firmly along the flap for a secure seal. Store envelopes in a dry place to maintain adhesive performance.