Heavy duty board back envelopes in white and manilla, made using 1000 micron backing board and a heavyweight face paper to ensure protection when posting bendable items.
Blake C5 120gsm Manilla Board Backed P&S Pocket PK125
Board Back P&S ML 241x178mm PK125
Board Back P&S Manilla C3 PK100
Board Back Pocket P&S WT C4 PK125
