• STAY HYDRATED ALL DAY - Power you through your longest days with this large tumbler with lid and straw that holds 40 oz of beverage. Perfect for drinking water, smoothies, tea, or iced coffee. Just fill it up and get on with your day. Fits just about any car cup holder, take us with you wherever you go!

• DOUBLE-WALL VACUUM INSULATION - Our tumblers are insulated with a double-wall vacuum, built from kitchen-grade 18/8 stainless steel. Double-walled vacuum technology can keep your drinks hot for 8+ hours or cold for 24+ hours. Keeps cold drinks cold and hot drinks hot until the last sip.

• LEAK-PROOF & EASY TO HOLD - Greatyos 40 oz tumbler feature twist-off lids and silicone gaskets to create a leak-proof seal, this means no more sticky. Flexible, ergonomic comfort-grip handle provides a comfortable carrying, so you can easily carry your ice-cold drinks to work, meetings, the gym or trips out of town.

• DISHWASHER SAFE - Durable coat of color that won't fade, peel, or crack through extended field use. So cleaning your tumbler couldn't be easier, just pop them into the dishwasher. Spend less time hunched over the sink and more time doing the things you love. Greatyos is here to make it easy!

• BUILT TO LAST - Unlike normal cups, we over-engineered these double-wall insulated tumblers, solid engineering, meaning it can take a beating. Everything is made with BPA-free material so your drink stays safe to consume. Greatyos tumblers come with a limited lifetime warranty against manufacturing defects. Rest easy knowing we’ve got your back through it all.