There are 4 sizes of flask in the range from 0.3 Litre to 1 Litre and each one comes with two stoppers ¨C a one touch stopper and a simple screw top stopper. Tested both in the laboratory and by our recent expedition to Baffin Island these are highly efficient insulating vacuum flasks. The Vacuum is created from a heating and cooling manufacturing process that is more reliable than many other flask designs
¡ñ Keep drinks hot for up to 8 hours or cool for 24 hours ¡ñ Thermally induced vacuum for optimum performance ¡ñ Stainless steel construction with copper coated inner wall ¡ñ One-touch and screw-in stoppers provided with each flask ¡ñ Sleek design with lid that can be used as a cup ¡ñ Conforms to British Standards for quality and safety ¡ñ Four sizes available (0.3L, 0.5L, 0.7L and 1.0L)
