• 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).
• 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!
• DOUBLE-WALL VACUUM INSULATION - Our tumblers are insulated with a double-wall vacuum, built from kitchen-grade 304 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.
• 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.
• 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.