Envelope Mailers
C3 278 x 400mm

Prices Starting From £0.53 inc VAT inc VAT

7500 units in stock – Delivery within 2-3 working days.

Free UK Delivery for orders over £100.

Pallet Quantity: 1200

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Save with higher volumes!
Quantity Price Per Box (inc. VAT)
25 - 274 £0.58
275 - 499 £0.54
500+ £0.53
FREE 48-hour UK delivery for orders over £100
SKU: ROW311948 Category:


Our cardboard envelope mailers ensure high-quality protection for any flat items you may have that may also need extra depth. Our cost-effective mailers are designed to be expandable up to 40mm, making them a perfect packaging solution for a range of items.

Our mailers are designed to provide extra protection that normal envelopes don’t provide and are designed to fit through most letterboxes. Made with 100% recyclable materials this is also your ideal eco-friendly alternative compared to plastic mailer bags.

A permanent self-adhesive strip creates a tamper proof seal and there is and easy-open tear strip to help customers to access goods quickly. This also means packing is quick and easy with no need for extra void fill. The compact design also reduces postage costs compared with using larger boxes.

Recommended for:

  • Books & Diaries
  • Brochures, magazines & comic books
  • Calendars
  • Artwork & paperwork
  • Computer games, DVD’s & CD’S
  • Textiles
  • Photos & Documents

Additional information

Dimensions 400 × 278 × 40 mm
1-10 Packs


11-19 Packs


20+ Packs


Box Dimensions

400 x 278 x 40mm

Dimensions (Inches)

15.7 x 10.9 x 1.5 in

FAB mm H


FAB mm L


FAB mm W


FAB Inches H


FAB Inches L


FAB Inches W


Buy More Save More – when ordering in higher volumes!

FREE 48-hour UK delivery for orders over £100