---
product_id: 271074224
title: "UCGOU Poly Mailers 12x15.5 Inch White 100 Pack Medium Shipping Bags #5 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing"
brand: "ucgou"
price: "NT$1261"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/271074224-ucgou-poly-mailers-12x15-5-inch-white-100-pack-medium
store_origin: TW
region: Taiwan
---

# 12x15.5 inch perfect medium size All-season strong self-seal adhesive Tear & waterproof reinforced poly UCGOU Poly Mailers 12x15.5 Inch White 100 Pack Medium Shipping Bags #5 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing

**Brand:** ucgou
**Price:** NT$1261
**Availability:** ✅ In Stock

## Summary

> 📦 Seal it. Ship it. Stand out in style.

## Quick Answers

- **What is this?** UCGOU Poly Mailers 12x15.5 Inch White 100 Pack Medium Shipping Bags #5 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing by ucgou
- **How much does it cost?** NT$1261 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/271074224-ucgou-poly-mailers-12x15-5-inch-white-100-pack-medium)

## Best For

- ucgou enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Seal & Ship:** Four-season adhesive ensures a reliable seal in any climate—no extra tape needed.
- • **Boost Brand Recognition:** Clean, bright white mailers elevate your professional image and make your packages stand out.
- • **Streamline Your Packaging:** Lightweight yet durable bags reduce prep time and shipping weight for maximum efficiency.
- • **Privacy-First Opaque Design:** Milky white with gray lining keeps your shipments discreet and secure.
- • **Weatherproof & Tear-Resistant:** Heavy-duty polyethylene construction protects against rain, fog, and rough handling.

## Overview

UCGOU Poly Mailers 12x15.5 inch (100 pack) are premium, opaque white shipping bags crafted from thick, tear- and waterproof polyethylene. Featuring a strong, all-weather self-sealing adhesive, these lightweight yet durable mailers protect non-fragile items like clothing while enhancing your brand’s professional image with their clean, bright finish.

## Description

Poly Mailers 12x15.5 Inch White 100 Pack Medium Shipping Bags #5 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing

## Features

- Milky White Poly Mailers: The size of the bags is 12x15.5 inches. These poly mailers are milky white, which differ from the normal white poly mailers. With gray inner lining, these poly mailers are opaque. Used tear resistant material, UCGOU poly mailers can not only protect your privacy well during transportation, but also keep your goods arriving safely
- Strong Self Sealing Adhesive: Our mailing envelopes is using four season adhesive, which can maintain strong stickiness throughout the year, even if the weather is very hot or cold. The strong stickiness prevents your items from being secretly replaced during transportation. The adhesive is covered with silver strip, which are easily peel off the strip and seal the bag
- Sturdy and Durable Construction: The thicken shipping bags covers with polyethylene material, making them not easily punctured and damaged. Beside, the shipping bags features with excellent waterproof and tearing proof effects because of the reinforce sealing on the edge. They can keep your value stuff safely to destination even though using on foggy or rainy days
- Convenient and Easy to Use: These poly shipping bags are the perfect choice for small and middle business for easily using with not require extra packaging material, which can improve your company productivity at work, save much time. It is very suitable to transport for makeup supplies, photos, magazine, books, hoodies, shoes, clothes and more
- Enhance Brand Influence: Bright colors bring a lively atmosphere, which makes the items you transport more conspicuous and will not be easily lost. Beautiful colors can also make your customers happy and enhance your brand influence. We have been committed to making better products to serve our customers, so that their business can get better and better

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | UCGOU |
| Brand | UCGOU |
| Product Dimensions | 39.37 x 30.48 x 0.03 cm; 1.38 kg |
| Color | White |
| Closure | Self-Seal |
| Shape | Rectangular |
| Material Type | Plastic |
| Number of Items | 100 |
| Size | 12x15.5 |
| Manufacturer Part Number | AZ117 |
| Item Weight | 1.38 Kilograms |

## Product Details

- **Brand:** UCGOU
- **Colour:** White
- **Closure type:** Self-Seal
- **Occasion:** Everyday Mailing
- **Material:** Plastic

## Images

![UCGOU Poly Mailers 12x15.5 Inch White 100 Pack Medium Shipping Bags #5 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing - Image 1](https://m.media-amazon.com/images/I/61YtA+b184L.jpg)

## Available Options

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

## Questions & Answers

**Q: Are these recycable?**
A: Not Eco-Friendly! These are 100% virgin plastic, so not good to start with. No recycled materials were used to make these (shame), and no, you can't recycle them because poly packaging is generally rejected by recyclers.

**Q: how many mailers does it come with? like how many bags are there.**
A: I ordered 100 pcs pack, they should have other quantity pack if you do not need 100 pcs or need more than 100 pcs.

**Q: How many ? It doesn’t say.**
A: Hi , 1 Package of 100pcs

**Q: Would these bags be suitable to ship a pair of adult shoes , no box ?**
A: You could ship shoes in this, I think it wouldnt rip.  If it is for a customer, I would use a box instead or a bubble wrapper.

## Frequently Bought Together

- UCGOU Poly Mailers 12x15.5 Inch White 100 Pack Medium Shipping Bags #5 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing
- UCGOU Poly Mailers 10x13 Inch White 200 Pack Shipping Bags #4 Strong Mailing Envelopes Boutique Packaging Postal Self Seal Adhesive Waterproof and Tear Proof Small Business for Clothes Books
- UCGOU Poly Mailers 14.5x19 Inch White 100 Pack Large Shipping Bags #7 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-24*