The #10 Envelope (4 1/8" x 9 1/2") in 30lb. Leaf Translucent is a green, Vellum, see-through envelope that makes for intriguing mailers. With archival properties, not only can these invitations showcase unique mail pieces, but they can also be used to store documents and photos. Crafted from 100% pure cellulose fiber without resins or other transparentizing agents. Traslucent, recyclable, acid free, and elemental chloring free. Seal by convenient adhesive strip along square flap. Available printed or plain.