Daniel Humm designed our Zephyr glassware collection to elevate your everyday routine—and to keep your drinks warm. Talented artisans blow the double-walled glass vessels by hand with clean, clear lines to make a tasteful statement. We love the way coffee, tea and lattes appear to float within this mug. Pair with our other heat-safe, shatterproof Zephyr glasses for elegant and worry-free entertaining.