Duck Self-Seal Kraft Bubble Mailer #5 vs Duck Max Strength Poly Bubble Mailer #5

Both are Duck Brand #5 (10.5" x 15") self-seal bubble mailers with the same 4.7 rating, so the choice comes down to material. The Kraft paper mailer is the better pick for books, crafts and anything that should look like a plain parcel, and the 2-pack gives you a spare. The Max Strength poly mailer is the tougher one: water-resistant, tear-resistant and bright white for a professional look. Buy the poly if your items can get wet or handled roughly; buy the Kraft for lighter, dry goods.

• Choose the Duck Kraft mailer if you ship books, crafts or dry goods and want a plain paper look with a spare mailer in the pack.
• Choose the Duck Max Strength poly mailer if your items need water and tear protection or you want a clean white, professional appearance.