Nuby's Thirsty Kids Super Sipper is great for travel and on-the-go sipping. Our toddler cup is leak-resistant and holds up to 14 ounces (415 ml) of liquid—perfect for staying hydrated! Nuby has designed the Super Sipper cup with a 360° silicone valve that vents air around the straw to allow for easy drinking. These no-spill cups are made with break-resistant materials to help extend the cup life and come in fun prints to spark your little one's imagination. The swivel straw is easy to disassemble for a thorough cleaning, and its hygienic cover helps protect the straw while not in use. Keep your little ones happy and hydrated with Nuby's Thirsty Kids Super Sipper!