C3 Envelopes

Not all envelopes are small. Our C3 envelopes are a great way to send large documents or items, such as A3 posters, maps, or blueprints.

Available across many of our envelope ranges and in a vast amount of colour options our C3 envelopes typically come in the size of 450 x 350mm but can sometimes vary slightly.

Browse our C3 envelopes below.
Showing 17 products
Black Matt Finish Bubble Bag Mailers
From 0,62 €
Black Matt Finish Bubble Bag Mailers
Available in 6 Sizes
Best Seller
Black Premium Peel and Seal 180gsm Envelopes
From 0,43 €
Black Premium Peel and Seal 180gsm Envelopes
Available in 5 Sizes
Best Seller
Manilla Board Back Envelopes
From 0,23 €
Manilla Board Back Envelopes
Available in 17 Sizes
Best Seller
Silver Matt Finish Bubble Bag Mailers
From 0,65 €
Silver Matt Finish Bubble Bag Mailers
Available in 6 Sizes
Silver Metallic Finish Bubble Bag Mailers
From 0,75 €
Silver Metallic Finish Bubble Bag Mailers
Available in 7 Sizes
Black Metallic Finish Bubble Bag Mailers
From 0,58 €
Black Metallic Finish Bubble Bag Mailers
Available in 7 Sizes
White Premium Peel and Seal 180gsm Envelopes
From 0,32 €
White Premium Peel and Seal 180gsm Envelopes
Available in 23 Sizes
Best Seller
Red Metallic Finish Bubble Bag Mailers
From 0,92 €
Red Metallic Finish Bubble Bag Mailers
Available in 4 Sizes
Silver Metallic Finish Foil Envelopes
From 0,29 €
Silver Metallic Finish Foil Envelopes
Available in 8 Sizes
Black Metallic Finish Foil Envelopes
From 0,14 €
Black Metallic Finish Foil Envelopes
Available in 8 Sizes
Green Board Envelopes
From 2,21 €
Green Board Envelopes
Available in 3 Sizes
Silver Board Envelopes
From 2,44 €
Silver Board Envelopes
Available in 3 Sizes