10 x 13 x 2" White Expandable Tyvek Envelopes (Case of 100)

• Dimensions: 10" x 13" x 2" exterior
• Material: 18 lb Olefin
• Quantity: 100 envelopes per case
• Weight: Approximately 5.02 lbs per case
• Shipping: Parcel eligible

These 10 x 13 x 2 inch white expandable Tyvek® envelopes are built from 18 lb olefin, a synthetic material that delivers substantially greater puncture resistance, tear strength, and moisture protection than standard paper envelopes. The 2" side gusset allows the envelope to expand around bulkier contents without distorting or compromising closure integrity.

The expandable depth makes these envelopes well suited for catalogs, thick document packets, parts kits, sample assortments, and multi-piece media. They perform reliably in direct-to-customer fulfillment, retail distribution, healthcare supply logistics, and corporate mail operations where contents vary in thickness.

Each envelope features a self-seal strip that creates a secure bond without tape or moisture activation, supporting fast throughput in high-volume packing environments. The white exterior presents a clean, professional appearance for customer-facing shipments. Cases contain 100 envelopes and weigh approximately 5 lbs.