New Guardian manilla C5 envelopes are made from strong two-tone premium paper, perfect for protecting your mailings. These envelopes are FSC® certified, feature a window and are made from 130gsm paper, making them exceptionally strong envelopes suitable for everyday mailings. This pack contains 250 envelopes.

  • C5 size (229x162mm)
  • Made from heavyweight 130gsm paper
  • Window size of 100x40mm
  • Window position 63mm in from left-hand side, 25mm up
  • Self seal closure - contains a strip of gum on each flap which when pressed together forms an instant bond
  • Pocket envelope type, therefore the flap is on the short edge of the envelope
  • FSC® certified - products are independently certified to assure consumers that they come from sustainable sources
  • Pack of 250 envelopes
DeliveryEstimated DeliveryCost
Express DeliveryOrder before 1pm for next day delivery*��5.99 Standard Delivery 3-5 days.


You can return your purchase within 14 days of receipt where it is unused and in its original packaging. There are some exceptions, for example with specific hygiene products or if a product has been personalised or is not in a resaleable condition.

Any conditions of return are clearly stated below. See our full returns policy here.

* UK mainland only

** Industrial Scotland includes postcodes AB, DD, DG, EH, FK, G, IV5, IV30, IV31, KA, KY, ML, PA (except PA36, PA38, PA40, PA50), PH1 to PH18, TD

*** Scottish Highlands and Islands, Northern Ireland, Isle of Man, Scilly Islands, Channel Islands

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