Capacity: 532ml (18oz) Brushed stainless design Slim design fits in most cup holders and standard bike cages Easy filling and pouring ----------AboutThe Klean Kanteen Classic bottles, made from high quality, 18/8 food-grade stainless steel and designed to be a healthy alternative to the polycarbonate and lined-aluminum reusable bottles are free of BPA, phthalates, lead or any other toxins, and doesn't retain or impart flavours. Large 1.75" mouth opening is easy to drink from and is big enough for ice cubes and bottle brushes. Klean Kanteen Classic bottles are extremely durable and easy in maintenance, and thanks to the variety of available caps, can be quickly adapted to your personal needs.