No tipping - just flip, bite, and sip. Eddy® + Kids Cap Accessory is spill-proof when open, leak-proof when closed. Compatible with Eddy® Kids and Eddy® + Kids vessels. Includes one black Eddy + Kids cap with clear bite valve and straw.Top rack dishwasher safe and always BPA, BPS,  and BPF free. Recommended for ages 3+.