Compostable Bags 5L 20pk Product code B0083C Barcode 5025364000836 Brand UK Wholesale Compostable caddy liners make for a great eco-friendly alternative to traditional plastic bags. Each bag is made from bioplastics, meaning after 180 days the bag will biodegrade into carbon dioxide, water and biomass by at least 90%. Each bag can hold up to 5L and is suitable for composting. Each bag measures 300 x 300mm.