Tronco 20 oz Vacuum-Insulated Glass Tumbler

The tumbler that refuses to choose: real borosilicate glass where your drink lives, vacuum-sealed 18/8 stainless steel where physics happens. Cold drinks stay cold up to 12 hours, the steel section never sweats a ring onto your desk, and nothing ever tastes like metal or plastic. The glass insert twists out for cleaning, and the slim body still fits a cup holder.

• Glass taste, steel stamina: 12-hour cold retention, zero flavor transfer
• Sweat-free steel section keeps rings off desks and papers
• Glass insert twists out; both parts clean easily, glass is dishwasher safe
• Works as insulated tumbler or plain glass cup - two gadgets in one