Regular price $22.40 Sale price $11.18 Save $11.22
Shipping calculated at checkout.

  • Size: 180x450mm
  • Unit Weight: 0.1kg
  • Material: Corn Starch, PLA, PBAT
  • Weight Limit: Up to 5kg
  • Shelf Life: 9 months in a cool & dry place
  • Home and commercial compostable
  • Decompose approx. 6 months
  • 100 compostable mailers per pack
  • Double adhesive


Our compostable mailers are Australian certified. The compostable mailer bags are carbon negative, biodegradable, waterproof and reusable, made to decompose under favourable conditions. That’s the best thing about eco-friendly biodegradable packaging! Just put it with your kitchen scraps and garden waste in your home compost bin and it will disappear in weeks! 

Our Australian compostable mailers are suitable for packing items under 5kg. Biodegradable and compostable packaging isn't as thick as the usual plastic mailers due to its eco-friendly qualities.  With items that have sharp edges, please handle with care - test it out before sending it out. 

The Mailers also features two adhesive strips for return purposes, do the environment and your wallet a favour and reuse the signature compostable mailers a couple of times! then, once it has done its dash. Return it to the earth from whence it came. 

If you’re after something a little snazzy, check out our custom compostable mailers.

If you don't have a home compost bin, you can do one of the following:

  1. Check if anyone in your area have a compost. ShareWaste is a great place to start looking.

  2. Check your council's website. There are a number of them doing kitchen and garden waste collection.

  3. Find a compost facility here

  4. Best of all, get your own home compost bin or worm farm! There are plenty of places you can get your hands on these. Some of the councils even offers discounts on equipment. Check out Compost Revolution it may be a great place to start.

Compostable Mailer - The best sustainable product for ecommerce businesses!

Check our size guide for exact dimension examples.

Have any questions in regards to the Compostable Mailers, wholesale orders, Shipping and Returns, or About our Company? Contact us to have a chat!


        All orders placed before midday will be dispatched that day. After this cut-off time, orders will be dispatched the following business day. Our team work hard to ensure orders are sent out as soon as possible, however, please allow 1 – 2 days for your order to be processed. 

        Please contact us if you wish to receive your order urgently.



        New South Wales, Victoria, Queensland, Australian Capital Territory, Tasmania

        Australian Standard Shipping 3 - 7 Business Days $10
        Australian Express Shipping 1 - 3 Business Days $15

        South Australia

        Australian Standard Shipping
        3 - 7 Business Days Base on weight


        Western Australia

        Australian Stabdard Shipping 3 - 7 Business Days Base on weight



        New Zealand

        International Standard Shipping 4 - 7 Business Days $30
        International Express Shipping 2 - 3 Business Days $50


        Please note the above shipping time frames are an estimation only and delays may happen during transit from time to time in which Unicorn Pack cannot be held responsible for.



        We hope you will love the products from Unicorn Pack. However, if you are not 100% happy with your purchase, you may return or exchange your purchase, subject to the following terms:

        Please read the following carefully before making a purchase as we will not be able to process your return/exchange if any of the following criteria is not met.

        • Returns must be approved by our customer service team before shipping.
        • Any concerns or issues must be raised within 10 days of receiving your purchase.
        • Items must be returned within 10 days of receiving your purchase.
        • All products and packagings must remain in original condition.
        • Refunds are only available for full priced items unless faulty.

        We recommend to return your products with a tracking option, Unicorn Pack will not be responsible for any parcels that are lost in transit. 

        Your return will be processed within 5 business days of receipt. An email notification will be sent once your return is processed.

        We do not refund initial shipping charges for items returned, unless faulty.

        For more shipping & return informations. please read HERE