Conveniently sized for on-the-go hydration, eco friendly drink bottles will keep hot drinks hot for up to 12 hours and cold drinks cool for up to 24 hours. Forget about ugly condensation rings on your desk or drips down the front of your clothes whilst driving as the twin wall insulation eliminates this problem entirely. Keep your drinks cold for up to 24 hours or hot for up to 12 hours Double wall insulated 18/8 stainless steel Leak proof lid BPA Free 500ml capacity .