Expandable Poly Mailer with or without a gusset allowing bulky, soft items to ship with ease. Available with full-color imprinting on 1 or 2 sides giving packages a professional, finished look. Made from durable, tear-resistant plastic with a peel and stick adhesive strip. Poly Mailers are an affordable option for mailing lightweight, non-breakable products such as apparel. Made from recyclable materials.