Contact First-class quality without any compromises!
Envelopes are made of 6 layers of strong uncoated paper, which enhances resistance to damage of the envelope content.
The interior of envelopes is lined with a protective flexible double layer of a 100gsm paper bubble insert, which stiffens the envelope, deadens shocks, prevents from scratches, creases and breaking. Very strong hot melt glue is placed on the straight or trapezoid-shaped closing flap of the envelope. The durable, wide and aesthetic seal on the two side edges of the envelope and fully lined with protection layer bottom prevents it from being torn apart.