The Hydro Flask is an easy to store and travel kind of bottle. It keeps your coldest drinks cold, and your hottest drink hot. Take it with you anywhere, either in a side The Hydro Flask is an easy to store and travel kind of bottle. It keeps your coldest drinks cold, and your hottest drink hot. Take it with you anywhere, either in a side pouch or your car's cup holder. The Hydro Flask features:-TempShield to keep temperature inside the flask-Pro-grade Stainless Steel for durability -Pr