I have two of these now. They stay closed and allow for sipping or using a straw through the built in mouthpiece (straw is built in). The medium sized one has a nice flat spot on the side for grip.
Also sold at Target and Walmart
I have two of these now. They stay closed and allow for sipping or using a straw through the built in mouthpiece (straw is built in). The medium sized one has a nice flat spot on the side for grip.
Also sold at Target and Walmart