15x20 Tyvek Self-Seal Flat Envelopes White 14lb - Case of 100
$225.26
/ case of 100$2.25 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
15" × 20"
Board / material
14 lb. Olefin
Color
White
Freight class
Class 78
Specifications
| Inside dimensions | 15" × 20" (L × W) |
|---|---|
| Board / material | 14 lb. Olefin |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 7.9 lb |
| Outer carton (shipping) | 23.25 × 16.75 × 2.25 in |
| LTL freight class | Class 78 |
| GTIN | 841436091114 |
| SKU | TYF1520WS |
About this item
SKU TYF1520WS — 15" × 20", 14 lb. Olefin, White. Sold as a case of 100, shipped from US warehouses.
Premium 15x20 white Tyvek® flat envelopes engineered for industrial shipping and document protection. Self-sealing design with 14 lb. olefin construction delivers 10x the tear resistance of standard paper mailers. Order by the case (100 units) for maximum cost efficiency and reliability.
Common questions
Are these envelopes waterproof and moisture-resistant?
Yes. Tyvek® olefin material provides moisture and liquid protection, safeguarding contents from humidity, water damage, and environmental contaminants during shipping and storage.
Do these envelopes meet postal carrier requirements?
Yes. These self-seal flat Tyvek® envelopes comply with USPS, UPS, and FedEx shipping standards. Available in both plain and First Class printed border versions for carrier compliance.
How much stronger are these than paper mailers?
Tyvek® envelopes are ten times stronger than traditional paper envelopes. The 14 lb. olefin construction provides exceptional puncture and tear resistance, significantly reducing damage claims and product loss.
Can I use these for side-loading or flat-loading?
These are flat-loading envelopes with a single-flap design and self-seal closure. The 20" x 15" dimensions accommodate most documents, certificates, and smaller rigid items while maintaining a professional appearance.
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.