Lifefactory 12-ounce (350 ml) glass water bottles glass water bottles are ideal for adults seeking a smaller capacity, lighter weight bottle that fits into handbags, backpacks and car cup holders. The volume also works well for active kids. These innovative bottles feature durable glass construction that offers pure taste with no chemical leaching. The bottle?s glass is surrounded in a patented silicone sleeve that both protects against breakage and provides a comfortable, non-slip gripping surface. The bottle also features a wide-mouth opening making it easy to fill with ice cubes, pieces of fruit, or drink mixes and powders. The Straw Cap is designed for upright, spill proof sipping--with no tipping required--perfect for use on-the-go or in yoga class. The Straw Cap has a handy pivoting handle that makes it easy to carry the bottle and that stows out of the way while drinking. For easy care, the silicone sleeve and bottle can be washed together. All components of the bottle are dishwasher safe. It is recommended to wash the cap and straw on the top rack. The cap is constructed of BPA/BPS-free polypropylene (PP5) with no phthalates, PVC, or polycarbonates. The straw is constructed of durable medical-grade silicone. All Lifefactory components are made in the USA or Europe and all products are assembled in the USA.