This 500ml vacuum flask set is the ideal companion for those who are always on the go. Crafted from durable stainless steel, both the flask and cup are built to withstand daily use and outdoor adventures. Its sleek flask design features double vacuum insulation technology, effectively keeping beverages hot or cold for up to 7 hours. The double-insulated wall enhances heat retention and ensures your drink maintains the perfect temperature, no matter where you are.