Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? If you’re a dedicated outdoor runner, a pair of thermal leggings is essential ...

Though a running outdoors throughout the winters has it’s downsides (read: slipping on ice, freezing fingers, darkness), I personally kind of prefer running in the winter. You’re less likely to ...

Its Polarfleece fabric, invented in 1979, was named one of the 20th Century’s Greatest Inventions by Time Magazine. But Polartec faces an uncertain future. The company, then known as Malden Mills, ...