The Brumate Muv 15 oz is crafted with insulated stainless steel that will keep your hot, cold and carbonated beverages cold for over 24 hours and hot for 4. The new OctaLock™ threading system allows for 8 different drinking positions. Easily change between left and right handed orientation by pushing down and turning right. The large soft grip handle allows for a comfortable hold and is scratch-resistant. The non-slip base keeps your mug upright and in place.