The Boss stainless steel growler is ready for filling with your favourite beverage with a massive capacity of almost 2 litres! Featuring Eco Vessel's own Tri Max® triple insulation technology, the Boss is vacuum insulated & has been tested to keep your drinks hot for 8 hours & cold for up to 36 hours! Eco Vessel have also included a removable stainless steel infuser, so you now have the option of adding various different flavours to your hot & cold drinks, whether it be adding fruity flavours to brighten up your hot tea, or ice cold water