Bubba Radiant Stainless Steel Water Bottle with Push-Button Chug Lid 32oz., Licorice Rubberized

What is the measurement of the base of the 32 oz?

Can you use it for hot drinks?

Why don't they make the rubber gasket seals removeable so you can take them out and clean under them??!!! I miss those bottles

Is the 24oz radiant suppose to have a straw