The Smartwool Men's Merino Sport Fleece Pants are a super comfortable fitness essential perfect for active trainers out in harsh conditions. These athletic-fit pants are made of recycled polyester/Merino wool fabric with a durable water-repellent (DWR) finish that will keep you comfortably protected during cold-weather training sessions. It features a windproof front panel as well as reflective elements for visibility in low-light conditions making them perfect for early morning runs. These pants include a durable flatlock seam construction which will help with minimizing chafing so you can perform at your best. The Smartwool Men's Merino Sport Fleece Pants are the best way to feel extreme comfort and be adventure ready for all your daily activities.