The LuxGo ProTemp Heritage 36oz Insulated Bottle in Copper Bronze is a premium 36oz insulated bottle from LuxGo's LuxGo Premium Bottles line. Engineered with double-wall vacuum insulation, it keeps drinks cold or hot for hours (38 hours cold / 14 hours hot). Crafted from food-grade 18/8 stainless steel, BPA-free, leak-proof, and built for everyday performance.