Product Description: 
Insulation:
Features double-walled vacuum insulation with an inner copper coating for maximum temperature retention, keeping beverages hot or cold for extended periods.
Lid Design:
Equipped with a leak-proof, sturdy flip-top lid for easy drinking and pouring. The main lid can also double as a convenient cup.
Leak Proof:
Designed to be leak-proof, ensuring no spills or drips when carried.
Versatility:
Suitable for various settings including office, home, or travel, and can be used for both hot and cold beverages.

Material Description:
Flask Body:
Constructed from 18/8 high-grade premium quality stainless steel. 
Insulation Layer:
Incorporates a 'Thermoseal' layer with copper coating for enhanced heat retention. 
Lid Components:
Made from fine-quality stainless steel, plastic, and rubber for durability and functionality.