Securitex tear resistant c4 34mm gusset envelope pocket 130gsm white pack of 50 securitex tear resistant c4 34mm gusset envelope pocket 130gsm white pack of 50 8350206 these securitex tear resistant envelopes feature an ultra tough 130gsm tri laminate construction with a layer of film sandwiched between two layers of paper the envelopes are tear and water resistant for increased security in transit and feature a simple secure peel and seal closure these c4 pocket envelopes are suitable f