For your most urgent shipments, Priority Mail Express is the ideal choice. This durable, water-resistant Tyvek envelope offers you flexibility and speed when shipping items that do not require the added protection of a corrugated box.

• USPS SKU: EP_13-C
• Quantity/Pack: 10
• Maximum Order: 400 packs of 10
• Can be used for Domestic Priority Mail Express and International Priority Mail Express.
• This product is free and will ship separately with no shipping charge
• Call 1-800-610-8734 for orders exceeding the maximum allowable order size