9x12" Silver Tyvek Self-Seal Envelopes - Tear Resistant, Case of 100
$135.53
/ case of 100$1.36 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
Silver
Freight class
Class 78
Specifications
| Inside dimensions | 9" × 12" (L × W) |
|---|---|
| Board / material | 14 lb. Olefin |
| Color | Silver |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 2.78 lb |
| Outer carton (shipping) | 13.25 × 10.5 × 4.75 in |
| LTL freight class | Class 78 |
| GTIN | 841436064576 |
| SKU | TYC912S |
About this item
SKU TYC912S — 9" × 12", 14 lb. Olefin, Silver. Sold as a case of 100, shipped from US warehouses.
The 9x12" Silver Tyvek Self-Seal Envelopes - Tear Resistant 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; 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 do these envelopes compare to paper mailers in durability?
Tyvek® envelopes are approximately ten times stronger than traditional paper envelopes. The 14 lb. olefin material resists punctures, tears, and moisture damage, protecting contents throughout multi-leg shipping routes without requiring additional protective layers.
Are these envelopes compliant with major shipping carriers?
Yes. The 9 x 12" size and Tyvek® construction meet USPS, UPS, and FedEx specifications. The self-seal closure is approved for all carriers, and the waterproof material prevents shipping label deterioration.
How does the self-seal closure work and does it require special equipment?
The Redi-Strip self-adhesive design requires no tape, dispenser, or additional equipment. Simply insert contents, fold the flap, and press to seal instantly. This reduces packing time and labor costs while ensuring consistent closure integrity.
Why choose silver-colored Tyvek® envelopes over standard kraft?
Silver mailers enhance brand recognition, improve package visibility in transit, and project a premium appearance. The distinctive color differentiates your shipments while the Tyvek® material provides protection and professional presentation versus standard colored paper options.
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.