Lifefactory beverage bottles are glass and made from non-toxic materials free of BPA, PVC, phthalates and lead. All the parts (silicone sleeve, cap, and glass bottle) are dishwasher safe. The cap has a tight seal to prevent leaking and the silicone sleeve is great for gripping. There are also ml and oz. measure marks on the sleeve so it's easy to keep track of how much liquid you've had. Lifefactory also offers the bottles in a 16 oz. size and they carry 9 oz. and 4 oz. baby bottles.
Celebrities like Reese Witherspoon, Alanis Morissette, Kirsten Dunst, and Jessica Alba have been seen touting Lifefactory bottles and it's no wonder. It's a great product well worth the price.
Disclaimer: I did not receive any compensation or payment from any website or company mentioned in this review. This is merely a recommendation of a product I've tried on my own and obtained through my own means.