ALINK 200 PCS Flexible Black Plastic Drinking Straws, 10.3 Inches Extra Long Disposable Extendable Bendy Party Fancy Straws

Q: Do they work well in hot beverages?

Probably the hotter the liquid the more pliable they would become. I bought them because you can stretch them to fit in a taller double walled lidded cup. If I stir with a flexible straw I insert it upside down so it's sturdier where my hand is stirring. I wouldnt reccomend them for Hot liquids.