---
product_id: 214092234
title: "KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes Shipping Bags Self Adhesive Waterproof Bags (Black), 12 x 15.5"
brand: "kkbestpack"
price: "€ 41.46"
currency: EUR
in_stock: true
reviews_count: 13
category: "Kkbestpack"
url: https://www.desertcart.pt/products/214092234-kkbestpack-100-pcs-12x15-5-poly-mailer-envelopes-shipping-bags
store_origin: PT
region: Portugal
---

# 100% waterproof protection 100 pcs durable poly mailers Self-adhesive secure seal KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes Shipping Bags Self Adhesive Waterproof Bags (Black), 12 x 15.5

**Brand:** kkbestpack
**Price:** € 41.46
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your shipping game with sleek, secure, and sustainable poly mailers!

## Quick Answers

- **What is this?** KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes Shipping Bags Self Adhesive Waterproof Bags (Black), 12 x 15.5 by kkbestpack
- **How much does it cost?** € 41.46 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/214092234-kkbestpack-100-pcs-12x15-5-poly-mailer-envelopes-shipping-bags)

## Best For

- kkbestpack enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Sealing:** Fast, 2-step self-adhesive closure saves time and reduces labor costs.
- • **Privacy Guaranteed:** 3-layer extruded polyethylene film ensures complete discretion for your sensitive shipments.
- • **Ship with Confidence:** Sturdy, waterproof poly mailers that protect your shipments better than boxes or paper envelopes.
- • **Eco-Friendly & Reliable:** 100% recyclable materials that combine sustainability with premium quality.
- • **Carrier-Approved Durability:** High-strength seams and 1.5” flaps allow safe over-stuffing without compromising integrity.

## Overview

KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes are premium black, waterproof, self-adhesive shipping bags designed for clothing and non-fragile items. Featuring a 3-layer extruded polyethylene film for privacy and durability, these carrier-approved mailers reduce damage and refunds while speeding up packing with a simple seal. Perfect for professionals seeking reliable, eco-friendly packaging solutions.

## Description

SHIP CONFIDENTLY Poly mailers for clothing and non-fragile items. These sturdy plastic mailing bags protect contents from rain and dirt better than corrugated boxes or paper envelopes.

Review: Reliable & Durable - This is the poly mailer brand I always use. They’re strong, waterproof, and the adhesive seals well every time. For some reason, the black ones are better quality than the other colors from this brand, so I always stick with these. Great value and very reliable for shipping.
Review: Great quality - Perfect size bag, very thick, durable and the seal is very tight.

## Features

- SHIP CONFIDENTLY Poly mailers for clothing and non-fragile items. These sturdy plastic mailing bags protect contents from rain and dirt better than corrugated boxes or paper envelopes.
- WATERPROOF POLY BAGS help reduce product damage and refunds by protecting items from rain, dust, stains and more. This makes polymail bags ideal for shirts, towels, bedding, paper and wood products.
- FAST AND EFFICIENT self-sealing poly bags for shipping reduce labor with a 2-step process. Slip your product into the bag and seal it. Bags accept adhesive labels or permanent marker addressing.
- 3-LAYER EXTRUDED polyethylene film ensures complete discretion. These large poly mailers deter prying eyes from seeing sensitive contents and preserve the surprise when giftables reach your client.
- CARRIER-APPROVED large shipping bags are 100% recyclable white poly mailers have high-strength seams and 1.5” flaps for over-stuffing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0897NH6P6 |
| Best Sellers Rank | #729 in Office Products ( See Top 100 in Office Products ) #7 in Envelope Mailers |
| Date First Available | May 27, 2020 |
| Item Weight | 2.64 pounds |
| Item model number | B125 |
| Manufacturer | KKBESTPACK |
| Product Dimensions | 7 x 12 x 1 inches |

## Product Details

- **Brand:** KKBESTPACK
- **Closure Type:** Self-Seal
- **Color:** Black
- **Material:** Polyethylene (PE)
- **Occasion:** Graduation

## Images

![KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes Shipping Bags Self Adhesive Waterproof Bags (Black), 12 x 15.5 - Image 1](https://m.media-amazon.com/images/I/41YDvuI79yL.jpg)

## Questions & Answers

**Q: Thickness in mil is not listed. What is it?**
A: A piece of paper.

**Q: Is this size good for hoodies 2xl?**
A: It's pretty likely you could!  I just barely used it to ship off a medium puffy nike jacket and was able to squish it down to size.

**Q: Will a mens medium puffer jacket with a hoodie fit (polo ralph lauren to be exact)?**
A: This question does not tell us the size of who the puffer jacket needs to fit? Please try asking with the correct details.

**Q: How thick a book will fit in side it?**
A: Very thick. They're big bags. You can fit multiple books in there.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable & Durable
*by C***N on December 30, 2025*

This is the poly mailer brand I always use. They’re strong, waterproof, and the adhesive seals well every time. For some reason, the black ones are better quality than the other colors from this brand, so I always stick with these. Great value and very reliable for shipping.

### ⭐⭐⭐⭐⭐ Great quality
*by A***E on November 21, 2025*

Perfect size bag, very thick, durable and the seal is very tight.

### ⭐⭐⭐⭐⭐ Zero complaints
*by A***R on January 17, 2026*

Work perfectly. Strong and the glue is stuck for good if it touches. Won’t open. You actually have to be careful not to let it touch too soon. Great stuff!

## Frequently Bought Together

- KKBESTPACK 100 Pcs 12x15.5 Poly Mailer Envelopes Shipping Bags Self Adhesive Waterproof Bags (Black), 12 x 15.5
- KKBESTPACK 100 Large Poly Mailers 10x13 Shipping Bags for Small Business – Self Sealing Package Envelopes (10 x 13 Pack of 100, Black)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-17*