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

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

Availability: In Stock
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Shipping & Delivery

Enjoy free shipping on orders over $29.99. A flat $4.99 shipping fee applies to smaller orders.

Things to Keep in Mind

Returns Policy

Most new and unopened items qualify for returns within 30 days of delivery.

Eligible return shipping costs are covered by us. Certain items, including custom products, limited editions, hygiene-sensitive items, oversized items, and final sale products, may not be eligible for return.

Refund Timeline

Most refunds are completed within 5–7 business days after the returned item is received and inspected.

This timeline may include:

  • 5–10 business days for return transit
  • 3–5 business days for inspection and processing
  • 5–10 business days for your bank to finalize the refund

How to Return an Item

To start a return, please visit your account and go to your order history. Once your request is submitted, you will receive an update by email after the return is reviewed and processed.

Shipping Information

We currently ship within the United States.

Free shipping is available on orders of $29.99 or more. Orders below $29.99 are subject to a flat $4.99 shipping fee.

Orders are typically processed within 1–2 business days. Estimated delivery times shown on product pages reflect both processing time and transit time.

Minor delays may occur due to carrier or weather conditions.

Why Customers Choose PulinGO

Carefully Selected Products
Carefully Selected Products
Curated for quality, value, and everyday practicality.
Fast & Reliable Delivery
Fast & Reliable Delivery
Tracked shipping across the U.S. with clear delivery estimates.
Real Customer Support
Real Customer Support
Helpful human support before and after your purchase.

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. ⭐🏆


📦 Package Includes

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


❓ 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.


⚙️ 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

🔒 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.