You will looks like an alien but your body will thank you.
This mask will keep you warmer—not just your face, but your entire core! A unique heat exchanger captures the heat and moisture in your exhaled breath, then uses it to warm and humidify the cold, dry air you breathe in, returning heat and moisture to your body. No batteries, no electronics! Reduces dehydration, and protects your heart and lungs from the detrimental effects of breathing cold air, especially during exercise.