They are durable, easy to clean, and low maintenance. Not compatible with Igloo thermoelectric coolers, Igloo metal chest coolers, BMX coolers, Igloo Roto Molded coolers, and Igloo Sportsman coolers.

2. (c) a layer of snow formed in a single drift Almost any snow will work for an experienced igloo builder in a pinch, but the best kind is a deep layer of packed snow from the same drift.