Will this fit into a cup holder? April 22, 2019 19:10 Follow Yes, the astrea bottle should fit in most standard car cup holders. The diameter of our bottle is just under 3 inches. Related articles What are the dimensions of the bottle? Is this bottle leak-proof? I don’t like the taste of my water. Will this help? Will this bottle sweat? Do I need to do anything to it before it's ready to drink out of? Comments 0 comments Article is closed for comments.