Thermoses by Owala. Details:The Owala FreeSip Insulated Stainless-Steel Water Bottle with Locking Push-Button Lid easily tackles every thirst. With a built-in, easy-clean straw and a wide-mouth opening, the FreeSip reusable bottle is designed for drinking two different ways: sipping upright through the straw or tilting back to swig from the wide-mouth spout opening. Add in a push-to-open lid and playful colors, and staying hydrated has never been simpler—or more fun. Additional features include double-wall insulated stainless steel that keeps drinks cold up to 24 hours, a carry loop that doubles as a lock, a cup holder-friendly base, and a wide opening for easy cleaning and adding ice. The Owala FreeSip Insulated Stainless-Steel Water Bottle with Locking Push-Button Lid is available in three sizes: 24-Ounce, 32-Ounce, and 40-Ounce. Lid is dishwasher safe; hand wash cup. Not for use with hot liquids.