Premium 300ML/420ML Double-Wall Insulated Glass Bottle

High-grade borosilicate glass construction ensures superior thermal shock resistance and durability. Vacuum-sealed double-wall technology maintains optimal temperature for 12+ hours (hot/cold). Ultra-clear glass showcases liquid clarity with scratch-resistant surface treatment.

Precision mouth-blown craftsmanship creates seamless 2mm-thick walls with airtight stainless steel stopper. Leak-proof design features food-grade silicone gasket for horizontal storage. Weighted base provides stability during pouring.

Ideal for whiskey tasting sessions, barista-grade coffee service, premium sake presentation, and craft cocktail mixing. Commercial-grade performance meets hospitality industry standards.

Wholesale-exclusive pricing with MOQ discounts available. Custom branding options (screen printing/laser engraving) for bulk orders. Ships in reinforced EPE foam packaging to prevent transit damage.