Review on 🥤 BPA-Free Replacement Straws for 10 oz THERMOS FOOGO Bottle (Model BS535), Includes 4 Kids Straw Replacements, Specifically Designed for Thermos Foogo 10 oz (Model BS535) by Gregory Robinson

They look almost identical to Foogo's thermoses and fit nicely in a mug without leaking. I will say that initially it was difficult for my son to get the liquid through the straw compared to the original. I played around with it a bit, releasing the suction between the two parts of the straw connection and not screwing the cup lid on too tight, and that helped a bit. Then, over time, we noticed that the flow was getting faster. Maybe it just had to be hacked? Since I had to play with it so much to make it work, I'm giving it 3 stars.