Owala SmoothSip Slider 20 oz Insulated Stainless Steel Travel Tumbler — Grey/Blue, Leakproof Slider Lid & Double-Wall Insulation

The Owala SmoothSip Slider is a 20-ounce insulated stainless-steel travel tumbler with a leakproof sliding spout designed for comfortable sipping and reliable temperature retention.

Designed for commuters, remote workers, and anyone who wants a dependable cup for hot or cold drinks, this tumbler combines a smooth, seamless spout with double-wall insulation and a secure slider lid. The High Dive grey/blue finish gives it a modern look while the stainless-steel build resists dents and retains flavor. It’s sized to fit most cup holders and shaped for an easy grip, making it practical for daily routines.

How does the SmoothSip Slider prevent spills during travel?

The slider lid closes the spout completely to block leaks and reduce splashes when turning the cup or walking with it. The design locks the drinking opening so liquid won’t escape in bags or car cup holders. You can flip, toss, or set it sideways without a spill when the slider is fully shut.

• Completely closes the spout for leak resistance
• Slide mechanism minimizes splash while drinking
• Secure lid prevents accidents in bags and cars

How long will my coffee stay hot or my iced drink stay cold?

The double-wall vacuum insulation slows heat transfer to keep beverages hot for hours and cold drinks chilled much longer than single-wall cups. It’s engineered to maintain temperature without external condensation on cold beverages. Results vary with ambient temperature and initial drink temperature, but it’s built for all-day use.

• Double-wall insulation for extended temperature retention
• Reduces external heat transfer and prevents condensation
• Performs well during commutes, desk use, and short outings

Is this cup easy to clean and safe for everyday use?

The tumbler body is stainless steel and the lid is dishwasher-safe, helping keep the cup hygienic with routine washing. The slider spout is designed to be simple to rinse, though the manufacturer recommends hand washing the cup itself to protect the exterior finish. Materials are BPA- and phthalate-free for peace of mind.

• Stainless-steel body resists flavors and stains
• Dishwasher-safe lid; hand wash recommended for the cup
• BPA- and phthalate-free materials for safety

Will this tumbler fit in my car cup holder and feel comfortable to hold?

The 20-ounce profile is tapered to match most standard cup holders and ergonomically shaped to fit in a hand. Its size balances capacity with portability so it won’t be too bulky for daily use. The textured finish and rounded shape help maintain a confident grip, even when you’re on the move.

• Tapered base fits most vehicle and stroller cup holders
• 20-ounce capacity offers a full serving without excess bulk
• Comfortable grip and modern finish for everyday handling

Who is this for: The Owala SmoothSip Slider is ideal for commuters, travelers, students, and anyone who wants a dependable reusable cup for work, outdoor activities, or daily errands. It suits people who value a leak-resistant lid, want reliable temperature control for hot or cold drinks, and prefer a cup that balances capacity with portability. If you use a reusable mug every day and need a no-fuss lid plus durable insulation, this model delivers practical performance with a clean, contemporary look.