It is smart designed with Silicone Sucker Bottom and the vacuum chuck designing at the base which will not fall over at any angle ,but can be lift easily straight up. If you accidentally knock into it, the cup will not tip over. The groove of the cup will avoid the liquid dripping to the bottom. This can protect your document or laptop from water, and bring much convenience for your life. You're worth it!

• Newest Design. Sucker Bottom, Strong suction, no fall over when touch it , but pick up easily by vertical lift
• With handgrip, lightweight, easy to carry. With Lid , Tight seal to prevent leaking and spilling
• Durable BPA-free construction; Vacuum suction cup type make it easy to suck.
• Eco-friendly, harmless to health. Suitable for: Home, office, school, Bicycle, travel, business trip, hike, picnic or other sports.
• Colors: White , Capacity: 470ml (16 oz)

Newest Design. Sucker Bottom, Strong suction, no fall over when touch it , but pick up easily by vertical liftThaiSuperior