C6 Manilla Gusset 180gsm Envelopes (Qty 200) 162mm x 114mm x 25mm1 2 day delivery as standard on this product These C6 Manilla Gusset Envelopes are made from high grade 180gsm kraft paper, which is much thicker than your average envelope, meaning a real luxury feel with the added advantage of protecting the contents of the envelope too. The look of this manilla kraft paper makes it ideal for a vintage style mailing or natural look. The gusset feature these envelopes expand to allow more capacity means they are