# Survivor® Heavyweight 18 lb Tyvek Catalog Mailers, Square Flap, Redi-Strip Adhesive Closure, 14.25 x 20, White, 25/Box

Made with durable 14-lb DuPont™ Tyvek®, which is strong enough to withstand the most grueling conditions. The material is puncture, tear and moisture resistant€”virtually indestructible.

-   Made with lightweight, yet strong and durable DuPont™ Tyvek® material.
-   Tough enough to resist the punctures, tears and moisture that can come with the shipping process.
-   Perfect for shipping smaller products to customers or selling personal items online, lightweight mailing envelopes can reduce postage costs.
-   Flap-Stik® peel and seal closure for a clean, sanitary seal without moisture and a release strip for quick opening.
-   Never run out with stock-up friendly boxes.

## Details

- **Price:** 97.92 USD
- **Vendor:** Survivor®
- **Type:** Envelopes & Mailers
- **Tags:** 14-1/4 x 20, Envelope, Envelopes, Heavyweight, Jumbo Envelopes, Letters, Mailer, Mailrooms, Open End Envelopes, Packages, Posts, QUALITY PARK, Receiving, Self-Seal, Shipping, Stationery, SURVIVOR, Survivor Envelopes & Mailers, Tyvek, Tyvek Envelope, Tyvek Envelopes & Mailers, White

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 97.92 USD | In stock |

## Images

- Heavyweight Tyvek Catalog Mailers | 14x20, 25/Bx

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> Source: [Bloom Skins](https://www.bloomskins.com/products/heavyweight-18-lb-tyvek-catalog-mailers-square-flap-redi-strip-adhesive-closure-14-25-x-20-white-25-box)
> Updated: 2026-08-29