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Fill it up with whatever you fancy – hot or cold – and it’ll be there for you at the perfect temperature whenever you’re ready
Featuring early illustrations of neurons in white and sand on a cool gray background
Wear this super-soft sweatshirt to spark conversations about your latest mathematical research or your latest proof
or working on this month's bullet journaling project
Heartbeat 12 oz Steel Bottle Dishwasher Safe Fill it up with whateverStudy your cardiac rhythms while keeping hydrated! It looks nicer than an EKG pocket guide, and this Heartbeat Flask is functional and aesthetic. Fill it with ice cold water and take it to the gym for your cardio workout, or top it off with coffee for a long night shift in the cardiac ward. With a textured design for a unique tactile experience, this flask will keep your drink hot or cold until you're ready to enjoy it.