Hydro Flask was founded in 2009 by Travis Rosbach and Cindy Weber, in Bend, Oregon, to combat plastic waste and tepid water by creating high-performance, double-wall vacuum-insulated stainless steel containers with a sleek, modern design and vibrant colors. The brand gained meteoric popularity, becoming a must-have accessory driven by cultural trends like climate change concern, the rise of wellness and personal wellness products, and social media platforms such as Instagram, which amplified its visibility.