100% leak proof.. 0.24L insulated lid doubles as a drinking cup. Double wall stainless steel vacuum insulation: no liners/coatings. 1.4L STANLEY DRINKS FLASK STAINLESS STEEL VACUUM BOTTLE | MPN: 1112 | Brand: Stanley | EAN: 5055748171159 | 1.4L STANLEY DRINKS FLASK STAINLESS STEEL VACUUM BOTTLE Capacity: 1.4 L 100% leak proof Easy pour stopper Heavy duty handle 0.24L insulated lid doubles as a drinking cup Double wall stainless steel vacuum insulation: no liners/coatings