HYV CoreFlow – Insulated Water Bottle | 750ml, 24-Hour Cold, Stainless Steel

Insulation that doesn't ask for a lot. The HYV CoreFlow is HYV's most accessible bottle — 750ml of double-wall vacuum insulation in a clean, no-frills build. No magnetic base, no silicone boot, no add-ons. Just a solid insulated water bottle that keeps water cold for 24 hours and costs less. Ideal for everyday carry when you don't need the extras. Key Features ✓ 750ml capacity — the right size for everyday carry ✓ 24-hour cold retention — double-wall vacuum insulation ✓ Clean, minimal design — no frills, no fuss ✓ Food-grade 18/8 stainless steel — no BPA, no plastic liner ✓ Value price point — HYV quality at an accessible price Specifications Capacity 750ml Material Food-grade 18/8 stainless steel Insulation Double-wall vacuum Cold Retention Up to 24 hours BPA Free Yes CoreFlow vs LuxeSip/LuxeFlow The CoreFlow is HYV's entry-level insulated bottle. If you want BIS certification and the silicone boot, go for the LuxeSip or LuxeFlow. The CoreFlow gives you the same stainless steel and vacuum insulation at a lower price without the premium add-ons. Frequently Asked Questions Is the CoreFlow BIS certified? The CoreFlow is not the BIS-certified model in HYV's range. For BIS-certified options, see the LuxeSip, LuxeFlow, and MagFlex. How long does it keep water cold? Up to 24 hours with the cap sealed. What is the replacement policy? We offer free replacement within 7 days of delivery for manufacturing defects or damage on arrival. Contact us at support@livehyv.com with your order details and photos of the issue.