The Simple Modern Mesa filtered water bottle provides clean drinking water on the go. The carbon filter that comes with the water bottle is easily inserted through the straw and can last up to two months. It helps clean out impurities, making the water safe to drink while also making it taste fresh. The straw lid is compatible with the filtered PP straw as well as the non-filtered PE straw used in other Simple Modern products. Featuring a leakproof lid, a silicone drinking spout, and a handle for convenient carrying, the Mesa water bottle is perfect for life on the go!