9x12" Tamper Evident Tyvek Envelopes - 14 lb Olefin, Case of 100
$103.04
/ case of 100$1.03 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
9" × 12"
Board / material
14 lb. Olefin
Color
White
Freight class
Class 78
Specifications
| Inside dimensions | 9" × 12" (L × W) |
|---|---|
| Board / material | 14 lb. Olefin |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 2.82 lb |
| Outer carton (shipping) | 13.0 × 10.5 × 4.5 in |
| LTL freight class | Class 78 |
| GTIN | 47614224002 |
| SKU | TYF0912TE |
About this item
SKU TYF0912TE — 9" × 12", 14 lb. Olefin, White. Sold as a case of 100, shipped from US warehouses.
Common questions
Are these envelopes compliant with pharmaceutical and medical shipping regulations?
Yes. Tyvek envelopes meet USPS, UPS, and FedEx shipping standards. The tamper-evident feature provides compliance documentation for regulated industries including pharmaceuticals, medical devices, and secure document handling. Consult your specific regulatory body for final approval.
What makes Tyvek material to paper mailers?
Tyvek is 10 times stronger than paper while remaining lightweight. It resists punctures, tears, and moisture damage that compromise product integrity. The non-woven olefin construction also protects contents from dust, humidity, and handling abuse without adding significant weight that increases shipping costs.
How does the tamper-evident seal work?
The integrated seal features specialized ink that displays 'OPENED' in bright red lettering when the flap is separated from the body. This provides instant visual proof of tampering, making it ideal for chain-of-custody applications, compliance audits, and customer confidence in product integrity.
What quantities are available and what's the cost structure?
SKU TYF0912TE is sold as cases of 100 envelopes. For bulk volume pricing on multiple cases, contact our sales team. Standard case packaging is designed for easy storage and quick dispensing in high-volume shipping operations.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.