--- title: "Compostable Mailing Bags | Plant-Based Mailers | Packagin…" url: https://www.packagingpanda.co.uk/compostable.html description: "Compostable mailing bags made from plant-based material with EN13432 certification and a double peel-and-seal strip for reuse. Home-compostable mailers in st…" lang: en-GB --- 10% Off Your First Order – 10% Off First Order – Use Code WELCOME10 sales@packagingpanda.co.uk Email Us (sales@packagingpanda.co.uk) My Account: https://www.packagingpanda.co.uk/account Sign In: https://www.packagingpanda.co.uk/account/login Create Account: https://www.packagingpanda.co.uk/account/register Home (https://www.packagingpanda.co.uk/)› Mailers (https://www.packagingpanda.co.uk/mailing-bags.html)› Compostable Mailers Image: Compostable Mailers — bespoke custom packaging from Packaging Panda (https://www.packagingpanda.co.uk/images/products/compostable.webp) # Compostable Mailers Compostable mailing bags made from plant-based material with EN13432 certification and a double peel-and-seal strip for reuse. Home-compostable mailers in stock. - Fully compostable mailer bags - Eco friendly mailing bags that are suitable for home composting - Compostable mailers with a double glue line to encourage reuse - Eco mailer bags that don't let you compromise on quality - Shipping mailers that let you stay committed to taking extra care of the environment ● In stock Free delivery All orders over £150 Next day delivery Order before 2pm Five-star rated 1,000+ UK businesses Live chat support Instant response Bespoke service Custom sizes & print | Image | Length | Width | Micron | Pack qty | SKU | Price Per Mailer (Ex VAT) | | | | Quantity | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1-4 Packs | 5-9 Packs | 10-20 Packs | 20+ Packs | | | | | | | | | Image: Compostable Mailers — Compostable — 230 × 180 mm (https://www.packagingpanda.co.uk/images/variants/compostable-compostable-180x230mm.webp) | 230mm | 180mm | Compostable | 100 | BINT0150 | 12p | 10p Save 17% | 9p Save 25% | 8p Save 33% | | | Image: Compostable Mailers — Compostable — 350 × 245 mm (https://www.packagingpanda.co.uk/images/variants/compostable-compostable-245x350mm.webp) | 350mm | 245mm | Compostable | 100 | BINT0146 | 15p | 13p Save 13% | 12p Save 20% | 11p Save 27% | | | Image: Compostable Mailers — Compostable — 445 × 345 mm (https://www.packagingpanda.co.uk/images/variants/compostable-compostable-345x445mm.webp) | 445mm | 345mm | Compostable | 100 | BINT0147 | 18p | 17p Save 6% | 16p Save 11% | 15p Save 17% | | | Image: Compostable Mailers — Compostable — 525 × 395 mm (https://www.packagingpanda.co.uk/images/variants/compostable-compostable-395x525mm.webp) | 525mm | 395mm | Compostable | 100 | BINT0148 | 23p | 22p Save 4% | 21p Save 9% | 19p Save 17% | | | Image: Compostable Mailers — Compostable — 600 × 440 mm (https://www.packagingpanda.co.uk/images/variants/compostable-compostable-440x600mm.webp) | 600mm | 440mm | Compostable | 50 | BINT0149 | 24p | 23p Save 4% | 22p Save 8% | 20p Save 17% | | | Image: Compostable Mailers — Compostable — 600 × 505 mm (https://www.packagingpanda.co.uk/images/variants/compostable-compostable-505x600mm.webp) | 600mm | 505mm | Compostable | 100 | BINT0176 | 29p | 28p Save 3% | 27p Save 7% | 26p Save 10% | Notify | ↑ Click any row to see size diagram, scale reference, and add to cart ### You may also like * * * Degradable Mailing Bags: https://www.packagingpanda.co.uk/degradable-mailing-bags.html Compostable Bubble Mailers: https://www.packagingpanda.co.uk/compostable-bubble.html Paper Mailing Bags: https://www.packagingpanda.co.uk/paper-mailing-bags.html White Mailing Bags: https://www.packagingpanda.co.uk/white-mailing-bag.html ## Compostable mailing bags for eco-friendly ecommerce Our **compostable mailing bags** are made from durable plant-based bio-resin (starch and PLA), certified to **EN13432** for industrial composting and suitable for home compost setups where conditions allow. Strong, water-resistant and printable, they are the most sustainable mailing solution we sell — and the easiest swap for any UK ecommerce brand still shipping in traditional poly mailers. - EN13432 certified compostable mailers - Plant-based — no oil-based plastic - Double peel-and-seal glue strip for reuse - Available in small, medium and large sizes - UK stock with free delivery over £150 ## What is a compostable mailing bag? A **compostable mailing bag** is a postal bag manufactured from renewable plant material that breaks down into water, CO2 and biomass in a composting environment — leaving zero plastic residue behind. Unlike conventional plastic, a true compostable mailer is independently certified (we use the EN13432 European standard, the same standard used for compostable food packaging). ## Biodegradable mailing bags vs compostable mailers The terms "**biodegradable mailing bags**" and "**biodegradable postage bags**" are often used interchangeably with compostable — but there's an important difference. All compostable bags are biodegradable, but not all biodegradable bags are compostable. Our range is both: they biodegrade and they are certified to fully compost into soil-safe material, which is the gold standard for eco-friendly mailing bags. ## Reusable mailing bags — the double glue line Every bag in this range has a **double peel-and-seal glue strip**. The first strip seals the original outbound parcel; the second sits below the tear-off line so the recipient can reseal the bag and use it again — for a return shipment, to send a parcel of their own, or to pass on. **Reuse always beats single-use, even for compostable packaging**, because keeping the bag in circulation extends its working life before it eventually returns to the soil. The double glue line is one of the most-requested features from our ecommerce customers and a simple way to give your unboxing a "use me again" message printed on the inside. ## Compostable vs degradable mailing bags — which do you need? If you want a plastic-free, plant-based mailer that returns to the earth, compostable is the right choice. If you need a strong, low-cost poly mailer that degrades over time, see our degradable mailing bags (https://www.packagingpanda.co.uk/degradable-mailing-bags.html). For a fully recyclable kraft alternative, see our paper mailing bags (https://www.packagingpanda.co.uk/paper-mailing-bags.html). ## Home composting vs industrial composting Our bags meet EN13432 — they break down in industrial composting facilities (controlled at 55–60°C) within roughly 12 weeks. In a home compost heap the process is slower (6–12 months) but they will still break down where moisture, heat and microbial activity are present. We recommend telling your customers which route to take with a short message on your packing insert. ## Eco friendly mailing bags for every order size Whether you ship jewellery, single garments, beauty subscriptions or larger apparel orders, our **eco friendly mailing bags** cover the full size range — from **small compostable bags** ideal for accessories up to large parcel formats. They are equally well suited as **eco friendly postal bags** for direct-to-consumer brands looking to remove plastic from their packaging stack. 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