The Stanley IceFlow Flip Straw Tumbler (30 oz) in Agate Calcatta is a durable, everyday hydration tumbler designed for busy lifestyles. Made from high‑quality 18/8 stainless steel with double‑wall vacuum insulation, it helps keep cold drinks chilled for hours while the built‑in flip‑up straw lid makes sipping easy and convenient on the go. The tumbler also features a comfortable handle for easy carrying and fits in most car cup holders — perfect for commuting, workouts, school, or outdoor adventures. Stanley’s IceFlow series uses sustainable materials, including recycled plastics in the lid, and is BPA‑free and dishwasher safe for hassle‑free cleanup.