LUXPaper 7 1/2 x 10 1/2 Booklet Envelopes, Clear Translucent, 50/Pack

When you can't or shouldn't fold the contents, here's the professional way to send flat but bulky materials- pamphlets, brochures, sales literature, booklets, annual reports, magazines, or catalogs. The flap, usually rectangular in shape, is on the long side for easier filling.