Ice-cold drinks for up to 24 hours, regardless of the outside temperature. Thanks to our advanced double-walled vacuum insulation, warm water is a thing of the past. Keep your tea or coffee hot for up to 12 hours. Perfect for winter hikes and chilly morning commutes. Caution - Chilly's works a little too well. Its airtight screw cap prevents soaked bags and accidental spills. With vacuum insulation, your Chilly's Bottle remains condensation-free. Chilly's Bottles are made from durable, high-quality stainless steel 304 for both inner and outer walls. This preserves the taste and freshness of your drink without any compromise.