Meet the Studio Tumbler, our most strongest glass cup yet. Made from thick borosilicate glass with a flatter, wider base, it’s naturally bottom-heavy for sturdy, spill-resistant sipping. We removed the silicone base so the glass stays clean and fully visible (no hidden cracks), and paired it with a premium silicone lid for a smooth, comfortable seal. Clear and calm, this is the everyday smoothie companion you’ll actually reach for.