The ready to make envelopes are supplied flat, all that needs to be done is to stick the flaps down and put a length of double sided tape to the top flap and you have a perfect envelope.
This recycled kraft paper is 130gsm plain kraft both sides.
PLEASE BE AWARE THAT THIS PRODUCT CAN HAVE SHADE VARIATIONS FROM BATCH TO BATCH, AND CURRENTLY IS NOT THE SAME SHADE AS THE ECO KRAFT CARD.