Borosilicate Glass Water Bottle, 500 ml, Steel Lid and Volume Markings

Clear borosilicate glass, so what is inside looks like what it is: tea, cold brew, cucumber water, or plain water with the scale up the side quietly reminding you to drink it. Borosilicate takes heat without complaint, and the wall is thickened so a hot fill stays comfortable to hold.

The lid is stainless steel and seals against leaks in a bag, and the mouth is wide enough to drop in ice, fruit or a brush for cleaning. The bottle is 7.8 cm across and 22 cm tall and holds 500 ml.

Glass carries no taste and no smell of its own, which is why it is still the best material for something you drink from all day.