Sometimes all we want to wear come wintertime are cozy, comfortable leggings. But many can be slightly too thin to withstand the frigid temps and blistering wind. Enter warm leggings designed in weighty fabrics like wool and fleece. Once you slip into a pair, you'll question ever reaching for your jeans during the cold-weather months. To help you narrow down your search for the best warm leggings on the market, we cherry-picked 25 of our favorites. They're all versatile, certain to keep your legs toasty, and, most importantly, comfortable. Intrigued? Read on to see and shop our edit ahead.