The largest compostable waste bag in our range is the 10-12 litre waste bag. This is a conscious choice. At the moment there is no compostable material in our range that is strong enough to be used for longer than 10 days or to carry amount such as 30 litres of waste. And we don't really like it to be a mess. Producing strong, compostable waste bags in large sizes (30 litres) is definitely something we are working on for the future, but we're not that far yet.