Skilcraft® Macerated Paper Padded Mailers are constructed with two layers of Kraft paper, held together by a uniform inner cushion of macerated paper. The outer layer of Kraft is water-resistant, while the mailer's self-sealing flap spans the entire width. An easy-opening tear strip is built into the back of the sack, with double-folded corners and a double-glued bottom flap for added edge protection and strength. This mailer also features a smooth inner liner and pre-scored flap for easy product insertion and efficient closure. Made with 100% post-consumer recycled waste material, 90% recycled paper, and at least 50% post-consumer recycled fibers, these mailers are of the highest quality from Sealed Air.