• Double-walled 304 stainless steel construction for durability and temperature retention. • Keeps beverages hot or cold for 8-10 hours. • Includes a straw for convenient drinking on the go. • Leak-proof design prevents spills in bags or cars. • Capacity of 400ml, suitable for a standard serving of coffee or tea. • BPA-free plastic lid ensures safe consumption. • Ideal for travel, office, or home use.