# Poly Mailers 10x13 Inch Black Self-Sealing Waterproof 100 Pack

Discover reliable and professional packaging solutions with our self-sealing waterproof poly mailers. Designed specifically for shipping and mailing applications, these mailers offer exceptional protection for apparel and other lightweight merchandise while maintaining high privacy and secure transit.

## Product Overview

Our express envelope bags are manufactured from durable poly material to protect your items against moisture, dust, and tearing. Featuring a convenient self-adhesive seal, these mailers allow for quick and efficient packing without the need for extra tape or fasteners. The sleek black exterior ensures complete privacy for your shipments.

## Key Features

-   Waterproof, dustproof, and moisture-resistant construction
-   Secure self-adhesive seal for fast, reliable closure
-   Durable, tear-proof, and puncture-resistant poly material
-   Lightweight design to help minimize shipping costs
-   High privacy opaque finish for secure deliveries

## Technical Specifications

**Product Type:** Poly Mailers / Express Envelope Bags  
**Size Options:** 6x9 inch, 10x13 inch, 12x15.5 inch, 14.5x19 inch  
**Material:** Poly  
**Sealing Type:** Self-Adhesive Seal  
**Color:** Black  
**Application:** Mailing, advertising, and packaging

## Common Use Cases

These versatile poly mailers are ideal for small businesses and e-commerce operations shipping apparel, clothing items, soft goods, and non-fragile merchandise. Their durable exterior and secure closure make them suitable for everyday fulfillment needs.

## Frequently Asked Questions

### What sizes are available for these poly mailers?

The mailers are available in multiple sizes including 6x9 inch, 10x13 inch, 12x15.5 inch, and 14.5x19 inch.

### Are these mailers waterproof?

Yes, they feature a waterproof and moisture-resistant design to protect contents from the elements during transit.

### How do you seal the bags?

Each mailer features a convenient self-adhesive seal that allows for a secure, tamper-evident closure simply by peeling and pressing.

### What is the primary material used?

These express envelope bags are constructed from flexible, durable poly material.

## Details

- **Price:** 52.04 EUR - 103.24 EUR
- **Vendor:** Tidesmit
- **Type:** Poly Mailers
- **Tags:** MAILERS

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black / 10x13 lnch 200pcs | 60.75 EUR | In stock |
| Black / 12x15.5 lnch 100pcs | 52.04 EUR | In stock |
| Black / 10x13 lnch 400pcs | 103.24 EUR | In stock |

## Images

- Black self-sealing waterproof mailer bag with 'thank you' print and top seal
- Black waterproof self-sealing mailer with strong adhesive strip and anti-cracking edge
- Black waterproof mailer bag with reinforced handle and 5kg max load 'thank you' print
- Black mailer size chart: 10x13 for T-shirts, slippers, and books
- Black 'thank you' mailer bags shown in customer review photos
- Customized mailer factory production images for professional packaging printing
- Black self-sealing waterproof mailer bag with handle and 'thank you' front print

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> Source: [Tidesmit](https://tidesmit.com/products/100-self-sealing-waterproof-black-mailers-10x13-inch-2-day-fast-shipping-for-small-business-biodegradable-handle-for-apparel)
> Updated: 2026-09-18