Premium Pure was created for those who feel a duty to the environment, and rightly so... but we have added a little more. We listened to your requests for a product that ticked all the environmental boxes, being 100% recycled and with FSC certification, without sacrificing the quality needed to retain its professional appeal in the business world, and can't blame you for this. And here it is... the whitest recycled envelope in the world together with all the attributes that make our Premium range so special... another first from Blake. Peel and Seal Size C4 Plain 120gsm Security Opaque Matching Paper Acid Free 100% Recycled 5 Year Shelf Life Digital and Laser Printer Safe Powerseal FSC Certified Product - Recycled