---
product_id: 271074224
title: "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: "€ 35.88"
currency: EUR
in_stock: true
reviews_count: 5
category: "Ucgou"
url: https://www.desertcart.es/products/271074224-poly-mailers-12x15-5-inch-white-100-pack-medium-shipping
store_origin: ES
region: Spain
---

# 12x15.5 inch perfect medium size Strong year-round self-sealing adhesive Waterproof & tear-proof durability 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:** € 35.88
**Availability:** ✅ In Stock

## Summary

> 📦 Seal the deal with style and security!

## Quick Answers

- **What is this?** 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?** € 35.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/271074224-poly-mailers-12x15-5-inch-white-100-pack-medium-shipping)

## 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

- • **All-Weather Seal:** Four-season adhesive ensures your package stays sealed rain or shine, hot or cold.
- • **Heavy-Duty Protection:** Thick polyethylene construction resists punctures, tears, and moisture for worry-free delivery.
- • **Privacy-First Packaging:** Opaque milky white with gray lining keeps your shipments discreet and secure.
- • **Streamline Your Shipping:** Self-sealing bags eliminate extra packaging steps, boosting your business efficiency.
- • **Brand-Boosting Brightness:** Clean, crisp white mailers make your shipments stand out and elevate your professional image.

## Overview

UCGOU Poly Mailers 12x15.5 inch (100 pack) are premium, opaque white shipping bags designed for medium-sized, non-fragile items. Featuring thick, tear-resistant polyethylene and a strong, weatherproof self-sealing adhesive, these mailers protect your goods and privacy in all conditions. Ideal for small to medium businesses, they simplify packaging while enhancing brand visibility with their clean, professional look.

## Description

UCGOU 12x15.5" White Poly MailersWe UCGOU is the professional manufacturer specializing in producing all sorts of poly mailers and bubble mailers. Sustainable innovation is our unremitting pursuit. Only for non-frigle items UCGOU poly envelopes are made of heavy duty 100% virgin plastic, which have a good stretch, lightweight and water and tear resistant. The poly bags is light enough, not to add too much to weight in first class packages but thick enough to feel that your products are safe when inside. However, the most important is the poly mailers are only suitable for non-frigle items or soft ones like clothes. Enhence Company Image and Your BrandTape, wrapping film and corrugated cardboard box......This is too much trouble when you prepare to ship somethings. It's time to say bye to the troublesome! Come to UCGOU! Send your package in clean, simple but grand style which would help to upgrade your company professional image. Believe us. Poly mailers with bright and pure color will allow customers to easily identify their orders from your shop when they arrive in their mail.

Review: Ok
Review: Exceptional quality and versatility for packaging

## 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 |
|---------------|-------|
| ASIN | B07PN34DHQ |
| Additional Features | Lightweight, Self-Adhesive Closure, Waterproof |
| Best Sellers Rank | #24,424 in Office Products ( See Top 100 in Office Products ) #21 in Mail Bags |
| Brand | UCGOU |
| Brand Name | UCGOU |
| Closure Type | Self-Seal |
| Closure type | Self-Seal |
| Color | White |
| Colour | White |
| Customer Reviews | 4.8 out of 5 stars 6,749 Reviews |
| Item Dimensions L x W | 39.4L x 30.5W centimeters |
| Item Shape | Rectangular |
| Manufacturer | UCGOU |
| Material | Plastic |
| Material Type | Plastic |
| Number of Items | 100 |
| Occasion | Everyday Mailing |
| Recommended Uses For Product | Letter, Invitation Card, Clothes |
| Size | 12x15.5 |
| Style | Poly |
| UPC | 743070938735 |
| Unit Count | 100.0 Count |

## Product Details

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

## Images

![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)

## 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.

## Customer Reviews

### ⭐⭐⭐ Ok
*by J***P on 7 July 2025*



### ⭐⭐⭐⭐⭐ Exceptional quality and versatility for packaging
*by A***D on 24 January 2024*



### ⭐⭐⭐⭐⭐ Good product
*by P***T on 4 February 2026*



## 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
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- 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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**Shop now:** [https://www.desertcart.es/products/271074224-poly-mailers-12x15-5-inch-white-100-pack-medium-shipping](https://www.desertcart.es/products/271074224-poly-mailers-12x15-5-inch-white-100-pack-medium-shipping)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-03*