Temperamental tumbler runs hot and cold, with double-wall vacuum insulation to deliver perfect sips for hours on end. Durable stainless steel anchors the design, with a spill-resistant magnetic MagSlider™ lid to help keep contents where they belong during your commute's inevitable commotion. Hand wash recommended; do not microwave. 6.88" x 3.5"; holds 20 oz. Silver. Screenprinted Boomi logo.