Pendaflex Smart Shield&nbsp;Reinforced File Jackets, Letter Size, Manila, Flat (24900AM) Reinforced file jacket is made with a material that inhibits the growth of mold and mildew to protect the product Enclosed sides secure papers and smaller items Reinforced top tab extends 1/2 Inch for easy labeling Durable 11 pt. manila; Flat design holds 50 sheets; Letter Size; Box of 100 Paper made from 10% recycled fiber, with 10% post-consumer fiber