9x12" Tyvek Self-Seal Envelopes White 14lb - Case of 100
$64.10
/ case of 100$0.64 per mailer
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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 | 2.84 lb |
| Outer carton (shipping) | 13.25 × 10.5 × 4.75 in |
| LTL freight class | Class 78 |
| GTIN | 841436091077 |
| SKU | TYF0912WS |
About this item
SKU TYF0912WS — 9" × 12", 14 lb. Olefin, White. Sold as a case of 100, shipped from US warehouses.
The 9x12" Tyvek Self-Seal Envelopes White 14lb is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 9" x 12"; Tyvek material; 14lb; case of 100. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
Common questions
How does Tyvek® material reduce shipping damage claims?
Tyvek® is 10 times stronger than paper envelopes and resists punctures, tears, and moisture. This protection minimizes product damage during transit, reducing costly returns and claim disputes while improving customer satisfaction.
Are these envelopes compliant with USPS and carrier standards?
Yes. The self-seal adhesive closure creates a secure, tamper-evident seal that meets USPS, UPS, and FedEx shipping requirements. These envelopes are approved for First-Class Mail and priority shipping services.
What products work best in 9 x 12" Tyvek® envelopes?
Ideal for documents, invoices, CDs/DVDs, small electronics, pharmaceuticals, and lightweight products up to 2-3 lbs. The flat design maximizes stackability while the side-loading format accommodates standard letterhead and thin merchandise.
How does the self-seal closure improve efficiency?
The pre-applied adhesive strip eliminates taping steps, reducing pack time by 15-25% per envelope. This accelerates fulfillment workflows, lowers labor costs, and ensures consistent, professional seals across 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.