The Hydro Flask is a vacuum insulated flask made of Pro-grade stainless steel and keeps cold drinks cold and hot drinks hot for hours. Hydro Flask bottles are colorful and designed with TempShield™ technology to retain temperatures whether you’re on an all-out adventure or making it through your daily routine. Due to its unique structure, the outer wall never gets dewy or warm.

• TempShield™ double wall vacuum insulation,
• keeps cold for up to 24 hours,
• keeps warm for up to 12 hours,
• volume: 591 ml.