9x12 White Tyvek Self-Seal Envelopes - Tear Resistant, Case of 100

$48.16
/ case of 100$0.48 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 | 2.68 lb |
| Outer carton (shipping) | 13.0 × 10.5 × 5.0 in |
| LTL freight class | Class 78 |
| GTIN | 50047614214602 |
| SKU | TYF0912WH |
About this item
SKU TYF0912WH — 9" × 12", 14 lb. Olefin, White. Sold as a case of 100, shipped from US warehouses.
Ship with confidence using these 9x12 white Tyvek self-seal envelopes. Made from durable 14 lb. olefin material, 10 times stronger than standard paper envelopes, they resist tears, punctures, and moisture while maintaining a professional appearance. Order by the case (100 units) and enjoy wholesale pricing with reliable delivery.
Common questions
How do Tyvek® envelopes compare to paper mailers in terms of durability?
Tyvek® envelopes are 10 times stronger than traditional paper envelopes and provide tear, puncture, and moisture resistance. This durability reduces product damage claims, improves customer satisfaction, and can lower overall shipping costs through reduced replacements and returns.
Are these envelopes compliant with USPS, UPS, and FedEx shipping standards?
Yes. These 9 x 12" self-seal Tyvek® envelopes meet USPS, UPS, and FedEx specifications for first-class and priority mail. They are suitable for domestic and international shipping without additional packaging modifications.
What makes the self-seal closure better than traditional tape sealing?
The Redi-Strip self-adhesive closure eliminates the need for tape, reducing labor time and packaging material costs. Operators simply peel and press to seal, no special equipment required, while maintaining a professional appearance and consistent seal integrity across high-volume shipping operations.
Can these envelopes be printed with company branding or First Class borders?
Yes. These envelopes are available in both plain white and pre-printed with First Class borders. Custom printing options are available for bulk orders. Contact our sales team for minimum order quantities and pricing on branded versions.
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.



