This glass water bottle is 3.15" in diameter allowing for easy drinking, ice cube compatibility and easy cleaning by bottle brush or dishwasher. The lid and seal are also dishwasher safe. It is made of eco-friendly glass, which is a non-toxic, BPA free, and a reusable alternative to plastic bottles. It is great for everyday usage with water, smoothies, juice and even mixed drinks. Logo can be imprinted on it.