Working out in the winter can be difficult, but if you knew you were going to stay warm, it would be a lot easier.
Now Vimmia's X line makes that possible. According to Stylecaster, Vimmia senior director and fitness instructor JJ Henderson says the leggings are made with a yarn that has "infrared technology that transforms human body heat into energy, which provides performance benefits." Specifically, this means that the fabric uses your own body heat to regulate temperature and circulation. So not only will they help you stay warm when it's cold, but they will also help you stay cool when it's hot and will help your muscles recover afterward.
Scroll down to see and shop Vimmia's amazing leggings…
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Opening Image: Bauer-Griffin/Getty