9x12x2 White Self-Seal Expandable Tyvek Envelopes 100/Case
$122.41
/ case of 100$1.22 per mailer
Request bulk pricing
| Quantity (case) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)
30-day returns on stock items · Return policy
Inside dimensions
9" × 12" × 2"
Board / material
18 lb. Olefin
Color
White
Freight class
Class 78
Specifications
| Inside dimensions | 9" × 12" × 2" (L × W × H) |
|---|---|
| Board / material | 18 lb. Olefin |
| Color | White |
| Sold as | Case of 100 |
| Physical units per order increment | 1 |
| Case weight | 4.08 lb |
| Outer carton (shipping) | 14.25 × 10.75 × 5.5 in |
| LTL freight class | Class 78 |
| GTIN | 50047614141304 |
| SKU | TYE09122WE |
About this item
SKU TYE09122WE — 9" × 12" × 2", 18 lb. Olefin, White. Sold as a case of 100, shipped from US warehouses.
The 9x12x2 Tyvek Expandable Self-Seal Mailers White is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 9" x 12" x 2"; Tyvek material; 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 much stronger is Tyvek® material compared to standard paper mailers?
Tyvek® envelopes are ten times stronger than paper envelopes, providing tear and puncture resistance. This durability reduces damage claims, product loss, and customer dissatisfaction, directly protecting your bottom line and brand reputation.
Can these envelopes handle moisture and harsh shipping conditions?
Yes. Tyvek® fabric is inherently moisture-resistant and designed to protect contents from water exposure during transit. The material maintains integrity in wet conditions, making these envelopes ideal for all-weather shipping and storage in variable humidity environments.
What is the expansion capacity and does it affect mailing costs?
The 2" expansion accommodates bulkier items without requiring larger, more expensive envelopes. This flexibility reduces dimensional weight fees and allows single-size inventory management, simplifying procurement and lowering per-unit mailing costs for varied shipment contents.
How does the self-sealing closure improve efficiency?
The integrated Redi-Strip closure eliminates tape, glue guns, and tape dispensers, reducing labor time per shipment by 15-30 seconds. For operations shipping thousands of items monthly, this translates to significant labor savings, reduced material waste, and faster fulfillment cycles.
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.