Yeti has given their classic Lowball a new stackable design offering space efficiency and a seamless DuraCoat finish. The compact design has a stackable bottom foot, and the seamless design updates the lowball to align with barware formats. 18/8 kitchen grade double wall vacuum insulated stainless steel keeps your beverage at your preferred temperature for hours. and the MagSlider lid slides smoothly. It is dishwasher safe.