• Show your unit pride with this eye-catching 30 ounce RTIC salute to the men and women who wore the "Black & Silver."  The tumbler is black and has the commemorative USAFHG 70th Anniversary graphic etched directly into the cup and finished with silver coating.  Constructed with 18/8 stainless steel, RTIC Tumblers are among the strongest and highest quality on the market.  The double wall vacuum insulation construction features a no sweat exterior, provides maximum temperature retention, keeps your cold drinks cold for up to 60 hours, while also working to keep your hot beverages hot for up to 12 hours.  Each tumbler includes a removable, shaded splash-proof lid with a flip-top closure that easily opens, closes securely, resists spills, and is straw friendly.  Don’t waste your time with toxic counterfeit knockoffs.  This tumbler is the real deal and is built to last.