These 10 x 13 inch red poly mailers are built from 2.5 mil polyethylene with a bold red exterior and silver interior lining. The self-seal adhesive strip closes securely without additional tape, and reinforced seams maintain package integrity even when contents are packed to capacity.

The red color provides immediate visual differentiation in fulfillment and warehouse environments, making these mailers effective for order routing, priority flagging, and brand-specific shipping programs. E-commerce retailers, subscription box operations, and direct-mail distributors use them to distinguish outbound shipments at a glance without relabeling or additional markings.

Constructed from moisture, puncture, and tear-resistant polyethylene, with an outer surface that accepts labels, stamps, and ink without pre-treatment. Each case contains 100 mailers and ships via parcel carrier.