The Stanley IceFlow Flip Straw Tumbler (30 oz) is a large‑capacity, vacuum‑insulated tumbler built for everyday hydration with convenience and durability. It’s crafted from 18/8 stainless steel and features double‑wall vacuum insulation that keeps drinks cold for many hours, while the built‑in flip‑up straw lid makes sipping easy when you’re on the go — whether for commuting, workouts, travel, or daily errands. The ergonomic carry handle and slim, cup‑holder‑friendly design add practicality, and the tumbler is BPA‑free and dishwasher‑safe for easy cleaning. Stanley also incorporates recycled plastics in parts of the construction to support sustainability.