DuPont Tyvek 75gm A4 - Pack of 20 Sheets (8.3" X 11.7") 1073D Crafts Paper Can be recycled and therefore environment friendly 75 gsm Tyvek products can be made into other products like Tyvek Wallets, Tyvek Envelopes, Custom Tyvek Wristbands, Kites, Origami and many more Made of synthetic material, therefore make it water-proof Tear-proof Scratch resistant