Sustainable Packaging That Performs Quality: Bases and lids manufactured in Sabert’s owned and operated state-of-the-art facilities, leading to enhanced product consistency. Leak Resistance: Patent pending double-lock lids provide superior leak resistance for soups, salads, entrées and more. Natural Look: Results in a tighter lid fit, stronger material properties and is an immediate green cue for the consumer. Annually Renewable: Made from bagasse, a by-product of sugarcane processing.