# 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick

The **12×16 inch white poly mailers** are the perfect solution for lightweight, durable, and cost-effective shipping. These **large size 5 mailing bags** are ideal for **clothing, fabrics, accessories, and soft goods**. 📦✨

Made from **high-quality polyethylene plastic**, they are **1.7 mil thick**, ensuring resistance against tearing, punctures, and water. This makes them suitable for both business and personal shipping needs. 🛡️💧

Each bag comes with a **secure self-sealing adhesive strip**, providing tamper-resistant closure without the need for additional tape or glue. 🔒🚀

The **bright white exterior** gives your shipments a clean, professional look, perfect for e-commerce stores, retailers, or home businesses. 🛍️📬

Lightweight design reduces postage costs while still offering dependable protection for your products. 💼⚡

For safe, professional, and affordable packaging, these **12×16 white poly mailers** deliver reliability every time. ⭐🏆

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## 📦 Package Includes

• White poly mailer envelopes (12″×16″, Size 5)  
• Thickness: 1.7 mil  
• Self-sealing adhesive strip  
• Protective packaging for delivery

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## ❓ Frequently Asked Questions (FAQ)

Q: What are the dimensions?  
A: Each mailer measures 12×16 inches (Size 5).

Q: How thick are they?  
A: 1.7 mil, offering strong protection while remaining lightweight.

Q: What closure do they use?  
A: Self-sealing adhesive strip.

Q: Are they waterproof?  
A: They are water-resistant, keeping items safe from dirt and moisture.

Q: What can I ship with them?  
A: Clothing, fabrics, accessories, and other soft goods.

Q: Are they reusable?  
A: They can be reused if carefully opened.

Q: Do they look professional?  
A: Yes, the white finish provides a clean, business-ready appearance.

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## ⚙️ Technical Specifications

Feature

Description

Product Type

Poly mailers / shipping bags

Size

12″×16″ (Size 5)

Thickness

1.7 mil

Material

Polyethylene plastic

Color

White

Closure

Self-sealing adhesive strip

Protection

Tear-resistant, water-resistant

Usage

Clothing, fabrics, accessories, soft goods

Weight Benefit

Lightweight, cost-effective

Application

Shipping, mailing, storage, e-commerce

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## 🔒 The PulinGO Promise

🔄 **30-Day Returns** – Hassle-free refunds or exchanges, ensuring every purchase is worry-free.  
We provide easy returns for total peace of mind.

📞 **24/7 Customer Support** – Always available to help with shipping, packaging, or product inquiries.  
Our expert team ensures your orders are handled smoothly.

## Details

- **Price:** 49.95 USD
- **Vendor:** PulinGO
- **Type:** Poly Mailers
- **Tags:** aliexpress, large mailing envelopes, plastic packaging bags, poly mailers, self-seal poly mailers, white shipping bags

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Gray | 49.95 USD | In stock |

## Images

- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick
- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick
- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick
- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick
- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick
- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick
- 12″×16″ White Poly Mailers – Pack of Large Self-Sealing Plastic Shipping Envelopes, Size 5, 1.7 Mil Thick

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> Source: [PulinGO](https://www.pulingo.com/products/12x16-white-poly-mailers-size5)
> Updated: 2026-05-21