6x9 bubble mailers

Most listings show an exterior size of 6 x 10 inches with a usable interior of 6 x 9 inches; some poly variants list an exterior of 6.5 x 10 inches with a usable 6.5 x 9 inches.

Listings generally show two constructions: a kraft paper exterior with a polyethylene bubble lining (kraft-lined), or a fully polyethylene (poly) mailer.

Most listings specify a self-adhesive (self-seal) closure that creates a tight, tamper-evident seal.

Listings vary. Examples in product descriptions include a 2/16 inch bubble lining for some kraft-lined mailers, while some poly mailers reference 3/16" bubbles or a '10mm' specification. Verify the listing details because manufacturers report bubble size in different units and terms.

Kraft-lined mailers are typically described as water resistant, while poly mailers are described as waterproof and often highlight reinforced seams plus tear- and puncture-resistance.

Kraft mailers advertise an extra-smooth paper surface suitable for handwriting, labels, and stamps; poly mailers note that ink and mailing labels adhere well to the plastic surface.

Listings highlight bubble-lined walls for shock protection, heat-bonded or reinforced seams for tamper resistance and watertight sealing, and resistance to tear, puncture, and dust.