For me, the most challenging part of winter running is finding the perfect leggings. Layering up on top is simple enough, but leggings are a different story. You need a pair that is warm and cozy but not too thick or bulky. They should also have pockets, reflective accents, and be flexible enough for long runs. If you’re in the market for warm winter running leggings, we’ve got you covered. Here are the best options to keep you comfortable and cozy on your next chilly run. Ahead, we’ve rounded up the best pairs of winter leggings for running to keep you cozy and warm the next time you hit the pavement.