H2O and go! Get the cup that keeps up with your little one – the spill-proof Dr. Brown's Milestones™ Insulated Straw Cup with sliding lid. Built for little hands, the Insulated Straw Cup is lightweight with handles that lock in place for easy grip. Remove the handles as baby grows for more developed sipping! A soft silicone straw teaches sipping skills, while a sliding lid keeps the straw clean and liquid in the cup when not in use. The double-wall construction keeps drinks fresh while on the go. Available in a variety of playful patterns and dark blue, green and pink colors, all with simple assembly and disassembly. Dishwasher (top rack) and sterilizer safe. 10 oz/300 ml. BPA free. 12m+.