# Poly Mailers 10x13 Inch 50Pcs Black Self-Seal Shipping Bags

Discover dependable shipping performance with our 10x13 inch 50-piece black poly mailers, engineered to provide secure packaging for your small business deliveries, apparel shipments, and mailing applications. Featuring a convenient self-adhesive seal, these lightweight express envelopes ensure quick packaging while protecting contents from moisture, dust, and tears during transit.

## Key Features and Benefits

-   Durable poly material offers reliable tear-resistant and puncture-resistant protection.
-   Waterproof and dustproof design keeps your shipments safe in various weather conditions.
-   High privacy opaque black color conceals package contents securely.
-   Self-adhesive seal provides a tamper-evident and secure closure without needing tape.
-   Lightweight construction helps reduce overall shipping and postal costs.

## Product Specifications

**Product Name:** Poly Material Custom Mailing Bags

**Dimensions:** 10x13 Inch (Custom sizes available)

**Thickness:** 2.5 mil (Custom thicknesses available)

**Color:** Black

**Closure Type:** Self-adhesive seal

**Material:** Poly

**Application:** Mailing, advertising, and delivery packaging for apparel and small business products

## Common Use Cases

These versatile express envelope bags are ideal for e-commerce brands, boutiques, and fulfillment centers shipping clothing, soft goods, documents, and non-fragile retail merchandise. The professional black exterior presents a sleek, uniform look for customer unboxing experiences.

## Frequently Asked Questions

**Q: What are the dimensions of these mailers?**  
A: These specific poly mailers measure 10x13 inches, providing ample space for standard apparel and flat goods.

**Q: Are these mailers waterproof?**  
A: Yes, they feature waterproof and dustproof properties to protect items from moisture during transit.

**Q: How do you seal the bags?**  
A: Each bag features a built-in self-adhesive seal for fast, secure, and hassle-free closure.

**Q: What material are the shipping bags made from?**  
A: They are manufactured from durable, lightweight poly material designed for commercial shipping needs.

## Details

- **Price:** 46.6 EUR - 48.78 EUR
- **Vendor:** Tidesmit
- **Type:** Poly Mailers
- **Tags:** MAILERS

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black / 9x12 lnch 200pcs | 48.78 EUR | In stock |
| Black / 12x15.5 lnch 100pcs | 46.60 EUR | In stock |
| Black / 10x13 lnch 200pcs | 48.78 EUR | In stock |
| Black / 14.5x19 lnch 100pcs | 48.78 EUR | In stock |

## Images

- Stack of black poly mailers with self-seal strip and visible color lineup
- Black waterproof poly mailer with self-adhesive seam and water droplet texture
- Black poly shipping mailer held open by hands, showing interior folds
- Black shipping bag containing folded clothing and small plush toy
- Black opaque privacy poly mailer with self-seal closure
- Black opaque poly shipping mailer shown with privacy-focused promotional collage
- Black poly mailer stack with self-seal strip and multiple available bag colors

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> Source: [Tidesmit](https://tidesmit.com/products/10x13-inch-50pcs-black-2-5mil-poly-mailers-waterproof-tear-resistant-self-seal-privacy-shipping-bags-for-small-business)
> Updated: 2026-09-18