24 hours cold Ice-cold drinks for up to 24 hours, regardless of the outside temperature. Advanced double-walled vacuum insulation makes warm water a thing of the past. 12 Hours Hot Keep your tea or coffee hot for up to 12 hours. Perfect for those winter walks and cold morning commutes. Careful - Chilly's works a little too well! Leak Proof, Sweat Free Airtight screw top lid prevents soaked bags and accidental spills. The vacuum insulation means your Chilly's Bottle will remain condensation free. Quality Materials, BPA Free Chilly's Bottles are constructed from durable, high-grade 304 stainless steel, for both the inside and outside walls. This preserves the flavour and freshness of your drink, without any tainting.