The Iron Flask 17 oz Retro Water Bottle offers throwback style with a modern twist. Take a few minutes to admire its sexy shape and jaw-dropping colorways, but don’t use up all of your admiration there—this reusable water includes a leak-proof lid, premium stainless steel construction, and double-wall vacuum insulation that keeps your drinks cold for 24 hours and hot for 10 hours with no bottle sweat. We also added a bottle brush to help you keep this puppy pristine.