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To wear the Icebreaker Quantum Headband, you don't have to fully understand how what was thought of as five different string theories turned out to be one string theory. You also don't have to have all 11 dimensions worked out. All you really need is a slightly chilly forehead. Merino wool naturally regulates your body temperature and deals with odor so you can wear this headband day after day during the physics conference (or, more likely, during your ski vacation).

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5 5

Annie Naylor

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  • Gender: Female
  • Familiarity: I've used it several times

I overheat really fast so need a headband that will keep my ears from freezing in the winter without making me too hot. This mid to heavyweight headband is absolutely perfect! It comes in sizes so you can customize your fit, and the merino wicks moisture to keep you mostly dry- but when it does get wet, the wool still provides great insulation. If you're worried that it will be itchy because it's wool, don't be. Icebreaker's merino is silky soft and stays that way through frequent washings. This headband is true to size. If you wear a size large helmet/hat, you're most likely going to need a size large headband.