not study at all.

This cup can possibly handle one cup of if finished quickly. I like to take my time and drink a few throughout the day and this absolutely does not stand up to use. They start to soak up the coffee along the seam ans weaken. I thought maybe it was the hot coffee so i tried it with ice coffee... This was even worse. when i picked up the cup to take a sip it bent in like i was trying to squeeze it but i was barely holding it. I will not be purchasing these again.

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