Lightweight winter shirt made from recycled materials. The extremely versatile Essentials Light Mid Layer with half-zip is primarily made from comfortable, stretchy recycled polyester. The inside features lightweight, brushed fleece that feels pleasantly warm against your skin when the temperature drops outside. Wear the mid layer under a vest or over a base layer – this way, you’ll always be well-prepared for various outdoor activities. You won’t want to take off this simple, warming top. Warm and breathable performance clothing that allows you to fully immerse yourself in the moment.