These 12 x 15.5 inch white poly mailers are built from 2.5 mil polyethylene with a silver inner lining, combining flexibility with the durability required for high-volume shipping operations. The white exterior surface accepts labels, stamps, and direct ink adhesion without additional treatment, eliminating a preparation step in fast-paced fulfillment environments.

The self-sealing pressure-sensitive adhesive closure creates a tamper-evident seal without tape or equipment, while a recipient-side tear strip enables clean, easy opening. Reinforced seams hold integrity when contents press the mailer to its capacity limits. This combination of features makes these mailers well suited for e-commerce apparel and soft goods, subscription box operations, and retail returns processing.

Constructed from moisture, puncture, and tear-resistant polyethylene, these mailers protect lightweight, non-fragile goods throughout the parcel shipping process. Each case contains 500 mailers and ships via parcel carrier.