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The Micro Hydro started life in Japan, where paring things back to exactly what you need is less of a lifestyle trend and more of a cultural default. It quickly became one of Hydro Flask's fastest-selling products – and now it comes in three sizes. The 200ml fits in a coat pocket or the palm of your hand, and holds just enough for an espresso shot, a glass of wine at camp, or a cold brew on the commute. The 300ml is the sweet spot: enough for a workout, an errand run or a short commute without any of the bulk of a full-size bottle. The 400ml gives you a little more to go on – enough to last a few hours – and clips to a bag strap via the removable FlexClip for hands-free carrying. All three are proper Hydro Flasks underneath: TempShield double-wall vacuum insulation, pro-grade 18/8 stainless steel, a leakproof screw cap, and the brand's lifetime guarantee. Because even the smallest things deserve to be built properly.
At 200ml and 150g, the Micro Hydro slips into spaces no full-size flask can reach – coat pocket, bar bag or lunch box – without you noticing it's there.
