Isosteel VA-9554AT 30 fl. oz. Double Walled Slimline Vacuum Flask, Double seal leak proof screw plug 18/8 food grade Stainless Steel, BPA free, FDA and LFBG approved high performance vacuum technology for highest insulation, keeps more than 24h hot or 48 hcold 100% recycable, spare parts available, leakproof by 2 gasket type screw plug, Quickstop version also available removable drinking cup 5 years limited warranty by Isosteel Germany, service info@isosteel.de