evo.com | Hydro Flask Drinkware > The only coffee mug your thirsty self will ever need is the Hydro Flask 12oz Coffee Mug. Insulated and durable, this cup is ready to take your delicious brew wherever you need it, from camp site to office desk. 18/8 Pro Grade Stainless Steel Won't retain or transfer flavor. Diameter 2.91" Mouth Diameter 2.28" TempShield | Hydro Flask 12oz Coffee Mug 2020