The Men's Colosseum Heavyweight 4.0 Baselayer Leggings are the perfect choice for staying warm and comfortable. These leggings are made with a heavy-duty, four-way stretch fabric that provides superior support and flexibility. The flatlock seams minimize chafing and irritation, while the contoured fit helps to minimize distractions. When you're spending time outdoors in cold weather, these leggings will keep you comfortable and warm.