---
product_id: 293238534
title: "Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue"
brand: "metronic"
price: "HK$462"
currency: HKD
in_stock: true
reviews_count: 8
category: "Metronic"
url: https://www.desertcart.hk/products/293238534-metronic-poly-mailers-12x15-5-100-pack-medium-size-shipping
store_origin: HK
region: Hong Kong
---

# 12x15.5 inches - perfect medium size Strong self-seal tamper-proof adhesive Tear & puncture resistant polyethylene Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue

**Brand:** metronic
**Price:** HK$462
**Availability:** ✅ In Stock

## Summary

> 📦 Ship Smart, Ship Stylish — Your packages deserve the best!

## Quick Answers

- **What is this?** Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue by metronic
- **How much does it cost?** HK$462 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/293238534-metronic-poly-mailers-12x15-5-100-pack-medium-size-shipping)

## Best For

- metronic enthusiasts

## Why This Product

- Trusted metronic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seal in Seconds:** No tape or machines needed—just peel, seal, and ship with the ultra-strong self-adhesive strip.
- • **Built to Protect:** Premium virgin polyethylene construction ensures your shipments stay waterproof, tear-resistant, and secure.
- • **Save Space & Costs:** Lightweight, compact design reduces postage fees and storage clutter, perfect for scaling your small business.
- • **Stand Out with Style:** Trendy blue color mailers that elevate your brand’s unboxing experience and leave a lasting impression.
- • **Versatile & Reliable:** Ideal for clothing, accessories, books, and more—trusted by thousands of online retailers and boutiques.

## Overview

Metronic Poly Mailers 12x15.5 (100 pack) are medium-sized, durable shipping bags made from premium virgin polyethylene. Featuring a waterproof, tear-resistant design with a strong self-seal adhesive, these blue mailers combine style and security for small businesses shipping clothing and accessories. Lightweight and space-saving, they streamline packing and reduce postage costs while ensuring your products arrive safely and impressively.

## Description

desertcart.com : Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue : Office Products

Review: Great choice! - Very sturdy, they don’t feel like they’re going to rip as soon as it goes in the mail. Love the colors- I’ve bought different colors and have loved them all. Great value.
Review: Solid Mailing Bags - Have ordered over 10 times already and never have any issues with the bags or delivery. Quality is great, they never tear easily, the seal is extremely sticky and the price per quantity is just right

## Features

- Fashionable Colorful Poly mailers - With trendy colors, these shipping bags are sure to make your package stand out and leave a lasting impression to consumers. These chic shipping mailers are smooth to the touch, measuring 12x15.5 inches, and a pack of 100 mails.
- Sturdy & Durable Construction - Our plastic mailing envelopes are made with premium-grade virgin Polyethylene plastic which are tear-resistant, puncture-resistant and waterproof. And every mailer is equipped with tamper-proof strong self-sealing adhesive strips.You can rely on our postal bags to withstand various factors and ensure that your package is safe before it reaches its destination.
- Convenient & Economical - The packaging bags can be sealed within a few seconds by peeling and exposing the glue, without the need for packing tape and pulse sealing machine. Plastic custom mailing bags are a great alternative to bulky and expensive shipping boxes.Mailing envelopes are light-weight and space-saving, which can help you save on postage and costs.
- Widely Use - Multipurpose envelopes are great for shipping light and less fragile products, such as clothing，books, jewelry, accessories,etc; professional packing to protect your item.Perfect for online retailers,clothing boutiques,office-supplies,family,stores,crafts,schools and warehouse.
- Shopping Worry-free - Metronic is constantly committed to providing more unique, multi-functional poly mailer bags to make your retail, transportation and packaging products stand out. If you have any questions, you can contact us at any time and Metronic will solve it for you in time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08SW11WGV |
| Additional Features | Dust Resistant, Self-Adhesive Closure, Tamper Proof, Tear Resistant, Waterproof |
| Best Sellers Rank | #4,636 in Office Products ( See Top 100 in Office Products ) #59 in Envelope Mailers |
| Brand | METRONIC |
| Brand Name | METRONIC |
| Closure Type | Self-Seal |
| Color | Blue |
| Customer Reviews | 4.7 out of 5 stars 7,795 Reviews |
| Item Dimensions L x W | 15.5"L x 12"W |
| Item Height | 0.23 inches |
| Item Shape | Rectangular |
| Manufacturer | METRONIC |
| Material | Polyethylene (PE) |
| Material Type | Polyethylene (PE) |
| Model Name | METRONIC V1 |
| Number of Items | 100 |
| Occasion | Anniversary, Birthday, Father's Day, Mother's Day, Wedding |
| Occasion Type | Baby Shower, Birthday, Halloween, Thanksgiving, Wedding |
| Recommended Uses For Product | Cardigan, Coat, Jacket, Jeans, Pants, Shorts, books, clothes shirts, cosmetics, jeans, shoes |
| Size | 12x15.5 100 pieces |
| Style | French |
| Unit Count | 100 Count |

## Product Details

- **Brand:** METRONIC
- **Closure Type:** Self-Seal
- **Color:** Blue
- **Material:** Polyethylene (PE)
- **Occasion:** Anniversary, Birthday, Father's Day, Mother's Day, Wedding

## Images

![Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue - Image 1](https://m.media-amazon.com/images/I/51qhxKNIuFL.jpg)
![Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue - Image 2](https://m.media-amazon.com/images/I/61FsPWmjipL.jpg)
![Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue - Image 3](https://m.media-amazon.com/images/I/61WuD+9kNZL.jpg)
![Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue - Image 4](https://m.media-amazon.com/images/I/61kRaysWpcL.jpg)
![Metronic Poly Mailers 12x15.5 100 Pack, Medium Size Shipping Bags for Clothing, Strong Self-Seal Mailers Poly Bags Shipping Envelopes, Thick Mailing Bags Package Bags for Small Business, Blue - Image 5](https://m.media-amazon.com/images/I/61nPCnW3J2L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How is the quality of Metronic's poly mailers?**
A: They are 2mil thick, sturdy & durable, ensure that your package is safe before it reaches to your customers.

**Q: What does the blue poly bags look like?**
A: The blue color is trendy and beautiful, are sure to make your package stand out and leave a lasting impression to your consumers!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great choice!
*by A***N on January 10, 2026*

Very sturdy, they don’t feel like they’re going to rip as soon as it goes in the mail. Love the colors- I’ve bought different colors and have loved them all. Great value.

### ⭐⭐⭐⭐⭐ Solid Mailing Bags
*by T***E on October 8, 2025*

Have ordered over 10 times already and never have any issues with the bags or delivery. Quality is great, they never tear easily, the seal is extremely sticky and the price per quantity is just right

### ⭐⭐⭐⭐⭐ Good quality
*by M***R on December 28, 2025*

Great mailers! Good quality; no issues!

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**Shop now:** [https://www.desertcart.hk/products/293238534-metronic-poly-mailers-12x15-5-100-pack-medium-size-shipping](https://www.desertcart.hk/products/293238534-metronic-poly-mailers-12x15-5-100-pack-medium-size-shipping)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-30*