Keeps my water cold, good size.
This thing is huge! We have received many compliments on the water bottle.
It's about 1/2 a litre size. It keeps everything cold for a long time. I was curious so I filled it about 1/4 with ice and the rest water. Lots of ice still left and the water was cold after 24hrs. So that double walled insulation works I guess.
This is the best bottle out there. Looks great and holds plenty of liquid for those intensive long workouts. A must have.