The Contigo Autoseal Water Bottle can be purchased on Amazon or other Department Stores for about $13.00. $13.00 seems expensive to me for a water bottle, but I needed something good that would last a while. The two things that lured me into buying the Contigo water bottle was its 32oz capacity and supposedly leak-proof water seal. As a school teacher, I am constantly moving around with text books, coffee cups, and papers which I have to keep dry. Also, the Contigo 32OZ water seal bottle is made from durable, BPA-free, light-weight plastic, so I can comfortably carry it in my laptop bag without worrying about spills. This particular Contigo water bottle is designed very ingeniously so you the water bottle remains sealed at all times until you push the button on the opposite side of while you drink from it. I can move around the classroom and take drinks without leaving the water bottle open or exposed to my germful students. I thought this was one of the best items I’ve purchased in a long time until about 3 weeks later.