If you want to add that little extra to the party or coffee break, these glasses from Zwilling are a must. The glasses, which come in a set of two, give the impression that the drink is defying gravity. Not only does your tea look like it's floating, but your guests also don't need to worry about getting too warm or too cold as the drink is insulated with the help of the glass's double walls. The glasses are made of borosilicate, which withstands large temperature differences. This makes these glasses ideal for those who love tea but also cold drinks.