Hydro Flask 21oz Standard Mouth Stainless Steel Cap White

Sometimes a little more ice-cold water is a little better. The 621 ml (21 oz) Bottle is the perfect size to keep by your side and sip on all day – replenishing fluids as you bike to work, hit the gym at lunch, or hang with friends after a long day at the office. Fill it with your favourite drink and it will stay cold for up to 24 hours or hot for 12.