🟦 Product Overview
Heavy-Duty Poly Mailer Bags are durable shipping packaging solutions widely used in e-commerce, express delivery, and logistics industries. They are designed to protect goods from moisture, tearing, and handling damage during transportation.
Made from high-strength polyethylene material, these courier bags offer excellent durability, strong sealing performance, and lightweight structure, helping reduce shipping costs while ensuring product safety.
As a direct manufacturer in China, we provide stable production, customized specifications, and reliable bulk supply for global buyers.
🟦 Key Features
- Thickened material for enhanced durability
- Waterproof and moisture-resistant protection
- Strong self-adhesive sealing strip (high stickiness)
- Tear-resistant and anti-burst edge design
- Lightweight but highly durable for shipping cost reduction
- Custom size, color, and logo printing available
- Suitable for e-commerce and courier packaging
- Factory direct supply with stable quality
🟦 Product Specifications
- Material: PE (Polyethylene)
- Type: Heavy-duty courier / poly mailer bag
- Closure: Strong self-adhesive seal
- Thickness: Standard & thickened options available
- Printing: Custom logo printing supported
- Color: White / Black / Grey / Custom colors
- Origin: China
- Customization: Size / thickness / printing available
🟦 Standard Sizes
Small Size Bags
15×30 cm
17×30 cm
20×30 cm
20×35 cm
25×35 cm
30×35 cm
30×40 cm
Medium Size Bags
28×42 cm
30×42 cm
35×42 cm
32×45 cm
35×45 cm
38×52 cm
42×52 cm
45×52 cm
Large Size Bags
40×55 cm
45×55 cm
50×55 cm
40×60 cm
45×60 cm
50×60 cm
40×65 cm
45×65 cm
Extra Large Size Bags
55×60 cm
50×65 cm
55×65 cm
50×70 cm
55×70 cm
60×70 cm
50×75 cm
60×75 cm
60×80 cm
Thickened Sizes Options
25×35 cm
28×42 cm
32×45 cm
35×45 cm
38×52 cm
45×55 cm
40×60 cm
45×60 cm
50×60 cm
(Custom sizes available upon request)
🟦 Applications
- E-commerce shipping packaging
- Express courier delivery
- Clothing and apparel packaging
- Small goods logistics protection
- Warehouse outbound shipping
- Cross-border e-commerce fulfillment
🟦 Production Capacity
We operate advanced production lines with strong manufacturing capability, ensuring stable supply and consistent quality. OEM customization, logo printing, and bulk orders are fully supported.
🟦 Why Choose Us
- Direct manufacturer in China with factory pricing
- Strong customization capability (size, color, logo printing)
- Thickened durable material for better protection
- Waterproof and tear-resistant performance
- Stable mass production capacity
- Professional export experience
- Reliable long-term supply partner
🟦 Get a Quote
Please send us your required size, thickness, color, and order quantity. Our team will provide a competitive quotation within 12 hours. Samples and customized packaging solutions are available upon request.
