It's easy to generate heat when you run in cold weather. Holding on to your body's warmth is the tough part. This hooded tee helps you stay strong and fluid when the temperature dips low. Built with climaheat™ insulation and adidas Primeknit Wool, this men's running long sleeve traps heat close to the body for temperature management from warm up to cool down. Thumbholes give extra coverage while tubular construction reduces chafing and offers smooth, wraparound comfort.