Stanley Quencher ProTour 40oz Flip Straw Tumbler in Black

The Stanley Quencher ProTour Flip Straw is a 40oz vacuum-insulated stainless-steel tumbler with a built-in flip straw and leakproof lid. It features 18/8 stainless construction, is cup-holder compatible, and BPA-free. Cold retention is exceptional—ice stays for hours in typical use. The tumbler is dishwasher-safe and designed for all-day hydration during travel, work, or outdoor activities.

This is the viral Stanley that dominated social media and retail shelves through 2023–2024, beloved for its large capacity and retro aesthetic. However, the flip-straw design has documented leak issues when tipped, and the paint finish can chip with heavy use. At $45, it carries a notable brand premium versus performance-equivalent competitors like Simple Modern or Iron Flask.