Material: Made from stainless steel, often double-walled for insulation, and featuring a lid that appears to be made of wood or bamboo.
Insulation: Designed to maintain the temperature of drinks, keeping them hot or cold for extended periods, potentially up to 12 or 24 hours.
Features: They often include a carrying loop on the lid for portability and a wide mouth for easy cleaning and adding ice or fruit.
Uses: Suitable for various activities like hiking, biking, camping, fitness, or everyday use at the office or gym.