🌟 Elevate Your Hydration Game! Inner copper coating preserves the flavor and nutrients of your drinks. Crafted from robust 18/8 stainless steel for everyday adventures. Experience beverages at the perfect temperature for 24 hours! Ideal for work, parties, or outdoor escapades—wherever life takes you! Enjoy peace of mind with a 1-year warranty against manufacturing defects. Double-walled insulation Durable stainless steel 24-hour temperature retention The Milton Astral Thermosteel Hot and Cold Flask is a 1200 ml double-walled vacuum insulated flask made from durable 18/8 stainless steel. It features an inner copper coating for superior temperature retention, keeping beverages hot or cold for up to 24 hours. Perfect for any occasion, this flask is designed to maintain the taste and nutritive value of your drinks, making it an essential companion for both indoor and outdoor activities.