Smartwool Merino quarter zip sweatshirt Classic All-Season

Zip up in cold weather and unzip when it gets warmer with our Classic All-Season men's merino 1/4 zip base layer, a year-round essential. This top uses our all-season weight merino fabric, wrapped around a nylon core to enhance durability, while keeping the 100% soft merino wool you love against your skin. The side seams help to minimize chafing when wearing a pack and provide a fit that flatters the body. Some colours feature a more responsible plant-based dyeing technique. This base layer is comfortable, powerful, durable, and frankly, capable of anything.