Stainless Steel Travel Outdoor Tumbler Cup | 30 Oz Double Wall Vacuum Insulated |Steel Peak Outdoors BUY 2 TUMBLERS AND GET 20% OFF YOUR ORDER - Use code STEELP20. BUY A TUMBLER AND GET A HANDLE 30% OFF - Use code HANDLE30. 6+ HOURS OF HOT AND 24+ HOURS OF COLD - Utilizing a double wall vacuum insulated design, these tumblers have the top temperature retention technology. NO SWEAT. NO FREEZING OR HOT HANDS - Get rid of those coasters and your fears of cold/hot hands when holding your beverage. MADE TO FIT ALL STANDARD SIZE CUP HOLDERS - The thinner base was designed so that you can take your tumbler anywhere you desire. EASY-TO-CLEAN SEAMLESS STEEL DESIGN - No stainless steel tumblers should be machine washed, but we make it as easy as humanly possible to hand wash these bad boys.