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: 19 - Ounce, 24 - Ounce, and 32 - Ounce Lid is dishwasher safe hand wash cup Not for use with hot liquids