Chilly’s Bottles are constructed from durable, high-grade 304 stainless steel, for both the inside and outside walls, preserving the flavour and freshness of your drink. Chilly's bottles keep your cold drinks, ice-cold for up to 24 hours, and your hot drinks, nice and toasty for up to 12 hours. Featuring an airtight screw top lid to prevent soaked bags or accidental spills, and vacuum insulation to ensure your Chilly's Bottle will remain condensation free.