11 1/8 x 8 5/8 x 2 1/2" White Side Loading Locking Mailers

These 11 1/8 x 8 5/8 x 2 1/2 inch white side-loading locking mailers are built from ECT-32-B single wall corrugated board and feature integrated locking tabs that secure the closure without tape or additional fasteners. The side-loading configuration allows for fast, consistent packing — contents slide in from the end rather than through the top, keeping the workflow moving at high-volume stations.

The clean white exterior supports a professional presentation for both branded and unbranded outbound shipments. These mailers are well-suited for e-commerce fulfillment, retail distribution, subscription box operations, and light manufacturing environments where appearance and speed are equally important.

Each mailer weighs approximately 0.30 lbs and ships flat, keeping storage footprint minimal at the packing station. Sold in bundles of 50, the flat-pack format stacks efficiently and is easy to stage without dedicated shelving or significant floor space.