TrailKeg Half Gallon – 64oz Vacuum Insulated Bottle – Portable Stainless Steel Growler for Beer and Other Beverages – Keeps Drinks Cold for Up to 24 Hours – Double Sealing Lid with Easy-Carry Handle

TrailKeg Sports Water Bottle, 64 oz, 1/2 Gallon, Vacuum Insulated Stainless Steel, Double Walled, Hot for 12 Hours, Cold for 48 Hours, Wide Mouth Metal Jug – affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link