Hydro Flask Micro Hydro Mini Bottle 6.7 oz delivers iconic performance in a compact, minimalist design. This pocket-sized stainless steel bottle features double-wall vacuum insulation to keep drinks cold for up to 7 hours or hot for up to 7 hours. Leakproof when closed and resistant to odor and flavor transfer, it’s perfect for tossing in a bag, lunch box, or pocket. Durable, lightweight, and backed by Hydro Flask’s lifetime warranty, this mini bottle is small in size but big on everyday convenience.