Titanium Aurora Bottle 600 in OceanFor the newest version of the Aurora bottle, we have employed the use of an environmentally friendly titanium called TranTixxii Eco. The metal reduces CO2 emissions and uses titanium ingots that are made from 50% scrap titanium. Additionally, the lid is made from a combination of TranTixxii Eco titanium and biomass plastic. The bottle has a capacity of 600ml and is also available in a 800ml version here.