- vacuum insulated - Double Wall stainless steel - Eddy+ valve and straw system - Capacity: 12oz /0.35L - No tipping required: Just flip open and sip - Easy for small children to operate and carry - Spill proof bite valve - stainless steel: BPA, BPS and BPF Free - vessel and cap are dishwasher safe (please note colours/patterns may fade over time) - valve and straw easy to remove for cleaning - Not for children under 3 years - Please Note: The self sealing silicone bite valve can sometimes seal tightly before first use. To open, squeeze the bite valve and twist and roll between your fingertips. This should loosen the seal and open it up for drinking - This is a non tip drink bottle. Leak proof refers to the valve when closed and sealed without liquid left inside