Adequate hydration leads to more enjoyment in life. From mountain hiking trails to your morning yoga session: the Standard Mouth model in the size of 710 ml (24 oz) holds enough liquid to keep you hydrated before, during, and after activities. The largest available bottle of the Standard Mouth model features double-wall TempShield vacuum insulation to keep your water refreshingly cold for up to 24 hours. Additionally, the insulation prevents condensation from forming, keeping the sides of your bottle dry.