With the continuous liners you only take the length that you actually need to surround & capture the waste so there is no excess liner and every bag is 100% full. We also use a special 3-ply liner formulation which allows us to massively reduce the thickness of the bags compared to standard bags, without compromising the strength and performance.
These two elements combine to save 70-80% of the plastic used with bin liners and the associated carbon footprint. To give you some idea, 100,000 standard bags converted to continuous liners would save around 23 tonnes of CO2