---
product_id: 496777378
title: "10 EcoSwift 12 x 16 White Large Poly Mailer Size #5 Self Sealing Envelopes Plastic Shipping Mailing Bags 12x16 1.7 mil"
brand: "ecoswift"
price: "€ 11.82"
currency: EUR
in_stock: true
reviews_count: 9
category: "Eco Swift"
url: https://www.desertcart.pt/products/496777378-10-ecoswift-12-x-16-white-large-poly-mailer-size
store_origin: PT
region: Portugal
---

# 12x16 inches - roomy & versatile Self-sealing tear strip - secure & hassle-free 1.7 mil thick - puncture & water resistant 10 EcoSwift 12 x 16 White Large Poly Mailer Size #5 Self Sealing Envelopes Plastic Shipping Mailing Bags 12x16 1.7 mil

**Brand:** ecoswift
**Price:** € 11.82
**Availability:** ✅ In Stock

## Summary

> 📦 Ship smart, seal fast, stand out.

## Quick Answers

- **What is this?** 10 EcoSwift 12 x 16 White Large Poly Mailer Size #5 Self Sealing Envelopes Plastic Shipping Mailing Bags 12x16 1.7 mil by ecoswift
- **How much does it cost?** € 11.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/496777378-10-ecoswift-12-x-16-white-large-poly-mailer-size)

## Best For

- ecoswift enthusiasts

## Why This Product

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

## Key Features

- • **Room to Ship It All:** Generous 12x16 inch size fits large documents and bulkier items with ease.
- • **EcoSwift Reliability:** Trusted by thousands with a 4.7-star rating—professional-grade quality at a smart price.
- • **Seal & Send in Seconds:** Self-adhesive tear strip closure ensures quick, secure sealing without extra tape or fuss.
- • **Built Tough for the Hustle:** 1.7 mil durable plastic resists punctures, tampering, and water damage—your shipments stay pristine.
- • **Bulk Ready, Budget Friendly:** Pack of 10 poly mailers balances convenience and cost-efficiency for everyday mailing needs.

## Overview

The EcoSwift 12x16 White Large Poly Mailer (#5 size) offers a durable 1.7 mil thick plastic build that is puncture, tamper, and water resistant. Featuring a self-sealing tear strip for secure closure, this pack of 10 mailers is designed for hassle-free, professional shipping of larger items and documents. Highly rated and budget-friendly, it’s the go-to choice for efficient, reliable mailing.

## Description

10 EcoSwift 12 x 16 White Large Poly Mailer Size #5 Self Sealing Envelopes Plastic Shipping Mailing Bags 12x16 1.7 mil

Review: EASY & Cheap - durable and perfect weight. Easy to seal and send and cheaper than at postage area
Review: Sturdy Envelopes. Excellent price - Excellent & durable. Good Price for the money.

## Features

- Size: #5(1.7)
- Dimensions: 12" x 16
- Puncture, Tamper, and Water Resistant Poly Mailer
- Self-Sealing Tear Strip for Secure Closure
- Quantity: 10

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QLCYCCK |
| Additional Features | Self-Adhesive Closure |
| Best Sellers Rank | #953 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Poly & Plastic Packaging Bags |
| Brand | EcoSwift |
| Brand Name | EcoSwift |
| Closure Type | Self-Seal |
| Color | Gray |
| Customer Reviews | 4.7 out of 5 stars 1,082 Reviews |
| Item Dimensions L x W | 16"L x 12"W |
| Item Shape | Rectangular |
| Item Type Name | Poly Mailer |
| Item Weight | 4.32 ounces |
| Manufacturer | EcoSwift |
| Material | Plastic |
| Material Type | Plastic |
| Number of Items | 10 |
| Occasion | Everyday Mailing |
| Occasion Type | Everyday Mailing |
| Recommended Uses For Product | Letter |
| Size | 12x16 |
| Style | Poly |
| UPC | 810085655121 |
| Unit Count | 10.0 Count |

## Product Details

- **Brand:** EcoSwift
- **Color:** Gray
- **Closure Type:** Self-Seal
- **Material:** Plastic
- **Number of Items:** 10

## Images

![10 EcoSwift 12 x 16 White Large Poly Mailer Size #5 Self Sealing Envelopes Plastic Shipping Mailing Bags 12x16 1.7 mil - Image 1](https://m.media-amazon.com/images/I/312+gsnvL3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ EASY & Cheap
*by A***. on April 14, 2026*

durable and perfect weight. Easy to seal and send and cheaper than at postage area

### ⭐⭐⭐⭐⭐ Sturdy Envelopes. Excellent price
*by L***A on March 10, 2026*

Excellent & durable. Good Price for the money.

### ⭐⭐⭐⭐⭐ Great for shipping orders!
*by A***N on January 7, 2026*

Great poly mailers. I use these for my Etsy shop and they get the job done. High quality materials, keeps contents safe and dry. Sealer glue works well but I still add extra tape, just in case. Thick plastic, great size for smaller items. Highly recommend!

## Frequently Bought Together

- 10 EcoSwift 12 x 16 White Large Poly Mailer Size #5 Self Sealing Envelopes Plastic Shipping Mailing Bags 12x16 1.7 mil
- Scotch Heavy Duty Shipping Packaging Tape, 1.88" x 27.7 yd, Great for Packing, Shipping & Moving, Clear, 1 Dispensered Roll (142L)
- 17.7 X 22 Inches Poly Mailers，Large Self-Sealing Shipping Envelopes Water Resistant Plastic Mailing Bags 10 Pcs

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**Shop now:** [https://www.desertcart.pt/products/496777378-10-ecoswift-12-x-16-white-large-poly-mailer-size](https://www.desertcart.pt/products/496777378-10-ecoswift-12-x-16-white-large-poly-mailer-size)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-07-13*