Have you ever wished for a hot cup of tea on a cold day? Or a thicker, warmer jacket during the winter? With the Sola SmartBand, you can experience both. Sola can literally make you feel warm and fuzzy inside because it’s the first wearable device that can increase your core body temperature. At the push of a button Sola will flood your body with comfortable warmth, no matter where you are or what you are doing. Experience a 0.4°F or 0.2°C increase in core body temperature within 10 minutes.