Fits most standard 30oz stainless steel tumblers with a 4" top: Yukon Outfitters® (30oz), YETI® (14oz, 26oz and 30oz), Tervis® (30oz), Swig® (32oz), SIC® (30oz), Reduce® (40oz), Polar Camel® (30oz), Ozark Trail® (30oz), Mossy Oak® (30oz), Magellan® (14oz, 30oz and 40oz), IGLOO® (27oz), Iron Flask ®...