---
product_id: 353817146
title: "Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25)"
brand: "greener route"
price: "€ 93.51"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/353817146-cardboard-envelopes-capacity-book-mailers-234-mm-x-334-mm
store_origin: NL
region: Netherlands
---

# A4 size 234x334mm 100% recycled & compostable 400gsm rigid micro-flute protection Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25)

**Brand:** greener route
**Price:** € 93.51
**Availability:** ✅ In Stock

## Summary

> ♻️📦 Ship smart, ship green, ship with confidence!

## Quick Answers

- **What is this?** Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25) by greener route
- **How much does it cost?** € 93.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/353817146-cardboard-envelopes-capacity-book-mailers-234-mm-x-334-mm)

## Best For

- greener route enthusiasts

## Why This Product

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

## Key Features

- • **Royal Mail Ready:** Compliant with Large Letter posting standards for hassle-free shipping
- • **Ultimate A4 Armor:** Perfectly sized for books, brochures & DVDs with depth
- • **Eco-Chic Packaging:** Made from 100% recycled, recyclable, and biodegradable materials
- • **Effortless Unboxing:** Peel & seal closure with rip-and-strip easy-open tear strip
- • **Puncture-Proof Confidence:** Micro F flute design ensures superior protection against damage

## Overview

Greener Route’s 400gsm cardboard envelopes (234x334mm) combine robust micro-flute construction with eco-friendly 100% recycled materials. Designed for secure Royal Mail Large Letter posting, these peel-and-seal mailers feature an easy-open tear strip and provide superior protection for books, brochures, DVDs, and delicate items—all while championing sustainability.

## Description

Full description not available

## Features

- A4 234x 334mm Heavy Duty with High Level of Protection
- ideal for books, brochures, DVDs and other products with depth
- Eco-friendly, Recyclable, compostable, Biodegradable
- Easy open tear strip making it simple for receivers to open the goods
- Made of 100% recycled and recyclable carton material
- Royal Mail Large Letter Posting Ready (PIP)
- Features a micro F flute, making them puncture-resistant and ensuring a very high level of protection
- Prevent damage for items such as photos

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Greener Route |
| Brand | Greener Route |
| Product Dimensions | 33.4 x 23.4 x 0.03 cm; 1.5 kg |
| Colour | Brown |
| Closure | Self-Seal |
| Shape | Rectangular |
| Material Type | Cardboard, Paper |
| Total Recycled Content | 100 |
| Number of Items | 25 |
| Size | 234mm x 334mm |
| Sheet Size | 234 x334 Millimetres |
| Manufacturer Part Number | 5060738420490 |
| Item Weight | 1.5 kg |

## Product Details

- **Brand:** Greener Route
- **Colour:** Brown
- **Closure type:** Self-Seal
- **Material:** Cardboard, Paper
- **Number of items:** 25

## Images

![Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25) - Image 1](https://m.media-amazon.com/images/I/61Wx8wVrJjL.jpg)
![Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25) - Image 2](https://m.media-amazon.com/images/I/61PhmSLkfNL.jpg)
![Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25) - Image 3](https://m.media-amazon.com/images/I/51dduaTwcsL.jpg)
![Cardboard Envelopes/Capacity Book Mailers 234 mm x 334 mm (A4) 400gsm - by Greener Route - Peel and Seal, Rip and Strip Open - Rigid Card Pocket for Royal Mail Large Letter Posting (25) - Image 4](https://m.media-amazon.com/images/I/61A1vB-DZOL.jpg)

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**Shop now:** [https://www.desertcart.nl/products/353817146-cardboard-envelopes-capacity-book-mailers-234-mm-x-334-mm](https://www.desertcart.nl/products/353817146-cardboard-envelopes-capacity-book-mailers-234-mm-x-334-mm)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-18*