Insulated stainless steel water bottles, also known as vacuum flasks or thermoses. These bottles are designed to keep beverages hot or cold for extended periods.
Material: Typically made of stainless steel.
Insulation: Double-walled and vacuum-insulated to maintain temperature.
Benefits:
Keeps drinks hot or cold for hours.
Durable and reusable.
Reduces the need for single-use plastic bottles.