Shipping Packaging ColomPac Universal C4+ 330x270 mm envelope for wrapping

ColomPac Universal C4+ 330x270 mm envelope for wrapping is a shipping packaging solution sized for documents and flat items that exceed standard C4 dimensions. Designed for safe packetizing and postal handling, this envelope provides space for oversized letters, brochures, thin catalogs and other flat media while protecting contents from dust and light mechanical contact during transit and storage.

Advantages

The envelope offers a balance of compactness and capacity, allowing users to ship larger flat items without switching to bulky boxes. Its dimensions accommodate oversized C4 documents and provide a smooth surface that is compatible with labels, stamps and addressing. The design reduces the risk of bending and surface damage compared with regular paper envelopes and supports efficient handling in postal and courier systems.

Suitable for

• Shipping oversized letters, certificates and legal documents
• E‑commerce shipments of flat products such as calendars, posters and slim catalogs
• Office mailing and archival correspondence
• Sending promotional print materials and booklets

Key specifications

• External dimensions: 330 x 270 mm
• Format: C4+ (accommodates items larger than standard C4)
• Type: flat shipping envelope for wrapping documents and flat items
• Intended use: postal handling, storage and document protection

How to use

Insert the document or flat item into the envelope so it lies flat and centered. Seal according to the envelope's closure system to ensure a secure transit; if additional protection is required, place the item in a protective sleeve or add a stiffening insert before sealing. Affix the delivery address, return address and postage clearly on the outer surface, and make sure any adhesive closure is fully engaged to prevent accidental opening during handling.

Usage recommendations

For reliable handling, avoid overfilling the envelope beyond its recommended dimensions and use stiffeners for thin or flexible items to reduce bending risk. When sending through couriers or postal services, confirm acceptable dimensions and packaging requirements to ensure smooth processing.