This thermal is perfect for OUTDOOR activities providing warmth without feeling bulky... Based on our own experience, the material is both durable and comfortable to wear all day. The fabric also wicks away moisture, keeping you dry even during an intense workout. However, the sizing runs a bit small, so be sure to try it on before purchasing. Despite this minor issue, the Carhartt Force Classic Thermal is a top pick for any man`s activewear collection..See full review