As the name suggests, the Hydro Flask 10oz Rocks was originally developed for beverages served on the rocks. However, its talents Aren't limited to iced refreshments. This tumbler, in concert with its insulated lid, is great for any drink that's best enjoyed while sipping. Features of the Hydro Flask 10oz Rocks Beveled bottom provides the perfect shelf for your Pinky finger TempShield Insulation keeps drinks cold up to 24 hours Insulated press-in lid Features our Honeycomb Insulation Durable 18/8 Pro Grade Stainless Steel construction Sweat-free thanks to our Insulation, eliminating bottle condensation Hydro Flask unique powder coat adds slip-free grip and extra durability