SmartShake Bohtal Insulated Tumbler - Black

The SmartShake Bohtal Insulated Tumbler in Black is a 750ml (25oz) double-wall stainless tumbler built for training days that don't leave time for a fridge run. As an Accessories piece from SmartShake, a brand better known for its shaker bottles, it's made for anyone who wants a shake, an iced coffee or plain water still cold hours after they've filled it. Gym-goers running two sessions a day and office workers who forget to refill get the same result: up to 12 hours of cold retention from a single fill, whether that fill happens before training or before a long commute.

How SmartShake Accessories works

The SmartShake Bohtal Insulated Tumbler relies on double-wall vacuum insulation, the same principle used in most quality flasks. A sealed gap sits between the inner and outer stainless walls with the air pulled out of it, and because heat needs a medium to travel through, removing that air slows the transfer dramatically. That's why a drink poured in cold stays cold long after a single-wall bottle would have already caught up to room temperature.

The 18/8 stainless steel used for the shell adds a second layer of protection. It's a grade chosen for resisting rust and everyday knocks, so the insulation performance isn't undone by dents or corrosion working their way through the metal over time. Between the vacuum seal and the steel grade, the SmartShake Bohtal Insulated Tumbler is built to hold its performance through daily use rather than just out of the box.

Why choose SmartShake Bohtal Insulated Tumbler

Choosing the SmartShake Bohtal Insulated Tumbler over a generic insulated bottle comes down to how it's built for actual training use rather than as a general-purpose flask.

• Two colourways, black shown here and rose-gold, so you can pick a finish that suits your kit or simply grab your own bottle out of a shared fridge.
• Filed under SmartShake's shaker and insulated-bottle range, so it fits alongside the rest of your shaker collection instead of standing out as a one-off buy.
• At $63.95, it's a single accessory purchase that covers water, iced coffee, smoothies and shakes, so you're not buying a separate bottle for each.

Getting the most from it

Fill the SmartShake Bohtal Insulated Tumbler with a protein shake straight after training, or load it with your pre-workout before you leave the house. It works just as well for a plain water fill you carry through the day between sessions or between meetings. Because it holds 750ml, it covers a full serve of most protein or pre-workout mixes without needing a second fill.

Pair it with the rest of your accessories lineup and keep it as the one bottle that travels with you all day, from the gym bag through to the desk, without needing to be swapped out.