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The BOROUX Sleeve pairs a 16.9 oz borosilicate glass bottle with a double-walled, vacuum-sealed 18/8 stainless steel sleeve. The glass holds the drink, so the liquid never touches steel, and the sleeve insulates it and shields the bottle from knocks. That makes it a fit for people who dislike the taste of metal or have nickel allergies but still want all-day temperature control. Against plain glass bottles it adds real insulation; against all-steel vacuum bottles it trades some ruggedness for clean-tasting glass. Buyers say ice stays frozen all day and the bottle stays dry outside.
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Lowest price we've seen: $20.99 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Buyers rate it highly, with praise centered on all-day ice retention, clean-tasting drinks and the sleeve protecting the glass. Several note it suits people who can't drink from stainless steel.
This set pairs a 16.9 fl oz (500 ml) borosilicate glass bottle with a double-walled, vacuum-sealed stainless steel sleeve. The sleeve keeps drinks hot or cold for hours and protects the glass bottle from damage.
The sleeve is made of food grade 18/8 (304) stainless steel. The bottle is BPA/BPS-free borosilicate glass with a wide mouth for easy filling and cleaning. The lid is 304 stainless steel with 100% silicone.
A white silicone ring goes in the bottom of the sleeve to stabilize the bottle. Not all bottles need it, so adjust or remove it if the bottle feels loose.
