The YETI Rambler® 10 oz. or Lowball is perfect for coffee at the office or whisky on the rocks! 18/8 stainless steel, double-wall vacuum insulation and magnet on the included MagSlider™ Lid adds an additional barrier to help keep heat and cold in. (The MagSlider™ is not leakproof and will not prevent spills). Available in Stainless and Duracoat™ colors which include some limited edition colors released by season.