Established in Oregon, USA in 2009. At that time, single-wall stainless steel bottles and hard plastic bottles were the mainstream in the United States. Meanwhile, Hydro Flask 's fully insulated bottle, which has both cold and heat retention functions, has been attracting attention. Currently, it is a popular brand that boasts a 30% share of the American sports and outdoor bottle market, and an almost 50% share of the stainless steel insulated bottle market.