The Travel Tumbler Mountains thermal mug by 24Bottles will keep drinks or food at the desired temperature for 6 hours (for hot items) or 24 hours (for cold items). Interestingly:

• The mug is made of 18/8 stainless steel.
• It is 100% leak-proof.
• It can be easily opened and a straw can be inserted.
• No water will condense on its surface.
• It has 3 types of lid: Coffee Lid (suitable for slow drinking hot coffee or tea), Sport Lid (perfect for cold drinks), Food Lid (best for eating snacks).