DualFlow
Rated 4.8 out of 5 from 67 reviews1 L · 2-in-1 lid · 24h cold
Frequently Asked Questions
Every HYV bottle and tumbler is double-wall vacuum insulated — that is the construction that holds temperature, because a vacuum has no air for heat to travel through. Cold retention runs up to 24 hours and hot up to 12, depending on the model, how full the bottle is, ambient temperature and how often the lid is opened.
HYV makes BIS-certified bottles, certified to IS 17526:2021, India’s national standard for stainless steel vacuum insulated containers.
Bottles run 750ml (CoreFlow, FlipFlow, SlimPro, DualFlow, SnapSip) and 1 litre (LuxeSip, LuxeFlow, DualFlow 1L, MagFlex), plus a 2 litre MaxFlow. Tumblers run 470ml (OpenFlow), 600ml (ChillSip, DailySip) and 1.2 litre (HydroFlow, HydroPro, HydroMax, HydroPop).
Food-grade 304 (18/8) stainless steel, double-wall vacuum insulated. There is no plastic liner and no BPA question — steel is inert, so it does not leach and does not carry taste between uses. Lids use a removable silicone gasket so the seal can be cleaned properly.
Yes. The tumbler range (ChillSip, DailySip, HydroFlow, HydroPro, HydroMax, HydroPop) is designed for hot as well as cold, with sealed sliding lids that hold heat and clip closed for a bag. The 600ml ChillSip is the sealed coffee-mug format specifically.
Yes — free shipping on all orders above ₹499, anywhere in India.
DualFlow
HYV DualFlow — the insulated water bottle with one lid that gives you two ways to drink. Chug spout for fast gulping between sets; sipper for controlled everyday sipping. Double-wall vacuum stainless steel, 750ml and 1L. Leakproof for bag carry.
More about this range
How does the DualFlow dual lid work?
Rotate the lid to switch between the chug spout and the sipper mouth. Both drinking modes are accessible without swapping lids.
Is the DualFlow leakproof?
Yes. The silicone seal keeps the bottle leakproof in bag carry regardless of which drinking mode is set.
What sizes does DualFlow come in?
750ml and 1L, both in vacuum insulated stainless steel.
