Made of platinum grade (highest grade possible) silicone, this reusable straw set folds down into a tiny travel pouch that comes with its own thermal-film opening tool. At 0.45 inches inside diameter, it's perfect not only for ordinary drinks but especially good for thickened drinks such as protein shakes, frappe, bubble (boba), and milkshakes.
I take them everywhere. They are pretty simple to clean, although sometimes I have to rewash and I also boil them in hot water with no issues. Supposedly they are the same material as baby nipples. They are great to use at restaurants or just when out. Also, when I bend them, they don't turn white! That's good quality silicone.
If you are concerned about using single-use plastic straws, here is a handy solution! The color-coded matching pinch pouch for the straws can help parents keep track of which kids are bringing them home for cleaning and reuse. Great conversation starter to build social awareness of environmental issues. The little pull-through squeegee cleaner tools makes it interesting enough that the kids want to help out. That's always a plus!