Tougher-than-nails 18/8 stainless construction provides a rough and ready exterior shell, while our patented No Sweat™ Design prevents slips and spills. And thanks to double-wall vacuum insulation, your drink stays the same temperature, even after hours in the field, on the water or elsewhere in the great outdoors. Black YETI Ramblers are just as comfortable en route to the office as they are out in the wild. Ultimate versatility, unbeatable quality, uncanny reliability—grab a Black YETI cup today.