About this item

• UPGRADED PATENT PERFECT FLIP STRAW - Say goodbye to other reusable straws that make a mess when tipped over. Our exclusive simple flip straw allows effortless sipping and is leak resistant when closed. Flip up the straw as you use it, and simply snap it shut when you leave, to avoid contaminating your drink with airborne dust due to exposed straw. So, you can toss your drink in your bag and take it on the go without ever spilling a drop. (Patent Registered).
• 100% LEAK-PROOF & EASY TO HOLD - Greatyos 40 oz tumbler feature twist-off flip straw 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.
• Our tumblers use double-wall vacuum insulation made from kitchen-grade 304 stainless steel. This technology can maintain the temperature of your drinks for up to 8 hours hot and 24 hours cold. Drinks will stay at the desired temperature until finished.
• BUILT TO LAST & DISHWASHER SAFE - 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. Dishwasher safe. Greatyos tumblers come with a limited lifetime warranty against manufacturing defects. Rest easy knowing we’ve got your back through it all.
• STAY HYDRATED ALL DAY - Power you through your longest days with this large tumbler with handle and flip straw lid 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!