The New Frequency Quencher ProTour Flip Straw Tumbler - 40oz

Meet the Stanley ProTour Frequency Tumbler — your perfect companion for daily hydration. With a generous 40 OZ capacity, this tumbler is built to keep your drinks ice-cold for hours, thanks to its advanced double-wall vacuum insulation. The ergonomic flip straw lid ensures smooth sipping on the go, while the sleek, rugged design fits easily into car cup holders and gym bags.

Crafted from BPA-free, durable materials, this tumbler combines Stanley’s legendary quality with modern functionality — perfect for workdays, road trips, or intense workouts.

Key Features:

• 40 OZ capacity for long-lasting hydration

• Double-wall vacuum insulation – keeps drinks cold or hot for extended hours

• Flip straw lid – easy, spill-free sipping

• Durable, BPA-free construction

• Fits standard car cup holders

• Dishwasher safe and reusable – eco-friendly