Hydro Flask Insulated Stainless Steel Wide Mouth Water Bottle and Beer Growler, 64-Ounce, Black Double wall vacuum insulation keeps beer and water cold for up to 24 hours and hot for up to 6 hours Premium grade 18/8 Stainless Steel BPA free Water Bottle and Beer Growler Colorful powder-coated matte finish exterior that never sweats Lifetime Warranty