I don't know what size you're looking for but I've had this one for a while now and it's amazing. It doesn't leak as long as you have the lid to the close position. You can throw it upside down in your bag and it's perfect. :D

I should attempt to post more but some days I feel like I'm shouting into the ether and I could just as well spend that time writing posts writing those same things into my bujo.

Hope the meeting goes well! <3