The Borosil Aquafit 830ml Vacuum Flask in Grey is a sturdy, wide-mouth water bottle built for people who need strong insulation through a long day at the gym, office or school. Its double-wall vacuum insulated stainless steel construction keeps beverages hot for up to 14 hours and cold for up to 16 hours, offering reliable temperature retention well beyond a typical work day. The wide mouth makes it easy to fill, add ice or clean thoroughly, while the leak-proof lid and included carrying strap make it simple to transport without spills. Its grey stainless steel finish gives it a clean, understated look that holds up well to daily use. Well suited to anyone who wants a dependable, higher-capacity flask for everyday hydration, the Aquafit 830 combines Borosil's trusted build quality with genuinely useful, everyday features. The Borosil Aquafit 830 Grey vacuum flask is available at Girdhar Das & Sons, Varanasi.