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If you live in leggings — and who doesn’t these days — you might find your go-to pair a teensy bit chilly when the mercury drops. Just as you wouldn’t necessarily rely on a short-sleeved tee all year long, it might be good to stock up on a few pairs of the best thermal leggings that provide some added protection against cold temps. Whether you’re looking for a fleece-lined pair to wear around the house, some good winter running tights, or merino base layers for your next hike, there are plenty of options out there to see you through seasonable and unseasonable weather. Not only will you stay warm, but you also won’t wear out your basic pairs as quickly.
Thermal leggings will offer a couple different types of insulation. Fleece seems to be the most common; it’s soft and quick-drying, which is essential to staying warm, and has the added benefit of being budget-friendly. You can even find pairs with super thick linings like sherpa.
If you need an active legging you’ll either want a lining of all-natural wool or a high-tech performance fabric. The benefits of wool include being famously warm and lightweight, excellent at moisture-wicking, and even naturally antimicrobial (it'll even keep odors a bay). If you're worried about itching, opt for a fine merino pair. (Most good leggings will be made from that anyway.) A moisture-wicking performance fabric, on the other hand, will make the most of your naturally generated body heat with added quick-drying capabilities to withstand the elements for outdoor workouts.
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