Features Colorful Silicon Sleeves That Provide a No-slip Grip, Making It Easy to Identify Your Own Glass. the Protective Silicon Sleeve Also Ensures Durability for Outdoor Use. Ideal for Filling with a Variety of Liquids, Including Cold or Hot Water, Milk, or Any Beverage, This Tumbler Combines Functionality & Style for Everyday Hydration Needs. Colors Available in White, Green, Black, Red, Orange, Grey.