Amazon offers the Thermos 40-oz. King Vacuum Insulated Stainless Steel Bottle in Midnight Blue for $21.58. Clip the $3 off coupon on the product page to cut the price to $18.58. Plus, Prime members receive free shipping. That's $4 under what you'd pay in-store locally. It features a twist and pour lid, stainless steel interior and exterior, and the capacity to keep liquids hot or cold for up to 24 hours.