Thermos cups, designed by professional designers, look elegant and are perfect for a variety of activities. With two lids included, the thermos cup is convenient for workouts, travel, and even beach parties. With the colored leak-proof lid, it becomes a classic tea or coffee thermos cup, but if you replace the colored lid with a transparent one (with a straw!), it becomes a vibrant cocktail glass. Thermos cups are the perfect gift for any occasion. Capacity is 414 ml. The double-walled construction with vacuum insulation keeps contents cold for up to 12 hours and hot for up to 6 hours when using the leak-proof lid. Two lids are included: one is 100% leak-proof with a locking mechanism for drinking, and the other has a straw hole. It is BPA-free and fits most car cup holders. It is suitable for making cold drinks with ice, coffee, and tea. After filling with boiling water, let the liquid cool for 1-3 minutes. This will prevent deformation of the plastic lid components, which become softer at high temperatures.