---
product_id: 201359550
title: "Manilla Hard Board Do Not Bend Envelope"
brand: "isoul"
price: "€ 31.99"
currency: EUR
in_stock: null
reviews_count: 13
category: "I Soul"
url: https://www.desertcart.fi/products/201359550-manilla-hard-board-do-not-bend-envelope
store_origin: FI
region: Finland
---

# Perfect A4 fit Secure peel & seal Eco-friendly materials Manilla Hard Board Do Not Bend Envelope

**Brand:** isoul
**Price:** € 31.99
**Availability:** ❌ Out of Stock

## Summary

> 📬 Seal the deal with style and sustainability!

## Quick Answers

- **What is this?** Manilla Hard Board Do Not Bend Envelope by isoul
- **How much does it cost?** € 31.99 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/201359550-manilla-hard-board-do-not-bend-envelope)

## Best For

- isoul enthusiasts

## Why This Product

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

## Key Features

- • **Flawless A4 Fit:** Precisely sized to hold standard A4 documents without folding or creasing, ensuring your important papers arrive pristine.
- • **Rigid Protection:** Hard board backing keeps contents flat and damage-free, making it ideal for certificates, photos, and official documents.
- • **Sustainable Choice:** Crafted from recyclable materials, these envelopes help you reduce your carbon footprint while maintaining professional quality.
- • **Effortless Security:** Peel-and-seal closure guarantees tamper-proof, quick sealing—no mess, no fuss, just reliable protection.
- • **Value-Packed Convenience:** 20-pack offering consistent durability and premium feel, perfect for office, home, or business mailing needs.

## Overview

These iSOUL A4 manilla envelopes feature a sturdy hard board backing and secure peel-and-seal closure, perfectly sized for A4 documents. Made from recyclable materials, they combine professional-grade protection with eco-conscious design, ensuring your important mail arrives flat, safe, and stylish. Ideal for business, personal, or office use, the 20-pack offers excellent value and reliability.

## Description

Great prices on your favourite Office brands plus free delivery and returns on eligible orders.

Review: Strong, Reliable, and Perfect for Posting Documents - These A4 board-backed envelopes are excellent quality. The hard backing keeps papers flat and protected, and the “Do Not Bend” message is clearly printed and easy to see. The self-seal strip works well and sticks firmly every time. The size is spot on for A4 sheets without folding, making them ideal for posting certificates, photos, or important documents. They feel sturdy and professional, and none have arrived bent or damaged. Great value for the pack size — I’ll definitely be buying these again.
Review: sturdy, reliable envelopes that protect documents and are easy to seal - I have been using the iSOUL 20-pack of A4 self-seal manilla envelopes with hard board backing for sending important documents and prints, and I am very happy with them. The hard board backing is strong and keeps the contents flat and protected during shipping. The envelopes fit standard A4 documents perfectly and have enough extra space to hold thicker papers without bending. The self-seal feature is very convenient and easy to use—no need for licking or wetting the adhesive. I also like that these envelopes are made from recyclable materials, which makes them a more eco-friendly choice. The envelopes have held up well through the postal system and my documents always arrive in great condition. While they are not waterproof, I have not had any issues with moisture so far. The pack of 20 offers good value for the price, and the quality is consistent. Overall, I would recommend these iSOUL manilla envelopes for anyone who needs sturdy, reliable envelopes that protect documents and are easy to seal. They offer great protection and convenience at a reasonable price.

## Features

- Peel & Seal Closure: Easy-to-use, secure peel-and-seal closure to keep your contents safe and tamper-proof.
- Perfect Size: ideal for standard-sized A4, invitations, and cards etc.
- Multi Purpose: Our large letter A4 posting envelopes are great for mailing holiday cards, greeting cards, invitations, announcements, photos, letters, wage slips, pay slips, dinner money, business office home and personal use
- Eco-Friendly: Made from recyclable materials, these envelopes are environmentally friendly, helping you reduce your carbon footprint.
- Includes: 20 x A4 C4 324mm x 229mm Manilla Hard Board Backed Envelopes Do Not Bend Envelope

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08739H9RF |
| Best Sellers Rank | 125 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 2 in Envelopes |
| Brand | iSOUL |
| Closure | Self-Seal |
| Colour | Manila |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,033) |
| Date First Available | 13 April 2020 |
| Item Weight | 1.08 kg |
| Manufacturer | iSOUL |
| Manufacturer Part Number | IS-2020-ENVELOPES |
| Material Type | Cardboard, Fibreboard, Paper |
| Model Number | A4 ENVELOPES 20PCS |
| Number of Items | 20 |
| Product Dimensions | 32 x 22.9 x 0.25 cm; 1.08 kg |
| Shape | Rectangular |
| Size | A4 |

## Product Details

- **Brand:** iSOUL
- **Closure type:** Self-Seal
- **Colour:** Manila
- **Material:** Cardboard, Fibreboard, Paper
- **Occasion:** Office

## Images

![Manilla Hard Board Do Not Bend Envelope - Image 1](https://m.media-amazon.com/images/I/911O1lBUwAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strong, Reliable, and Perfect for Posting Documents
*by T***S on 10 November 2025*

These A4 board-backed envelopes are excellent quality. The hard backing keeps papers flat and protected, and the “Do Not Bend” message is clearly printed and easy to see. The self-seal strip works well and sticks firmly every time. The size is spot on for A4 sheets without folding, making them ideal for posting certificates, photos, or important documents. They feel sturdy and professional, and none have arrived bent or damaged. Great value for the pack size — I’ll definitely be buying these again.

### ⭐⭐⭐⭐⭐ sturdy, reliable envelopes that protect documents and are easy to seal
*by S***T on 20 July 2025*

I have been using the iSOUL 20-pack of A4 self-seal manilla envelopes with hard board backing for sending important documents and prints, and I am very happy with them. The hard board backing is strong and keeps the contents flat and protected during shipping. The envelopes fit standard A4 documents perfectly and have enough extra space to hold thicker papers without bending. The self-seal feature is very convenient and easy to use—no need for licking or wetting the adhesive. I also like that these envelopes are made from recyclable materials, which makes them a more eco-friendly choice. The envelopes have held up well through the postal system and my documents always arrive in great condition. While they are not waterproof, I have not had any issues with moisture so far. The pack of 20 offers good value for the price, and the quality is consistent. Overall, I would recommend these iSOUL manilla envelopes for anyone who needs sturdy, reliable envelopes that protect documents and are easy to seal. They offer great protection and convenience at a reasonable price.

### ⭐⭐⭐⭐⭐ great value, great service
*by A***R on 16 January 2026*

Really good quality product at an amazingly low price. ( similar product in my local post office £2 for just one envelope ). good speedy service, items well packaged. Thank you. Neil.

## Frequently Bought Together

- 20Pcs A4 Envelopes Self-Seal iSOUL 324mm x 229mm A4 C4 Manilla Hard Board Backed Envelopes Do Not Bend Envelope
- A4 Clear Self-adhesive Bags 100 Pack, 22x30CM Self Sealing Cellophane Display Bags/Sealable Bags, Food Safe, A4 Cello Bags OPP for Cookies,Cards,Envelopes,Pictures
- House of Card & Paper Grey Kraft Board 1500micron 945gsm A4 Size 20 Sheets per Pack, HCP472

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**Shop now:** [https://www.desertcart.fi/products/201359550-manilla-hard-board-do-not-bend-envelope](https://www.desertcart.fi/products/201359550-manilla-hard-board-do-not-bend-envelope)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-22*