Our Sherpa unisex polypropylene thermal top provides a comfy, lightweight, affordable and quality base layer for all outdoor adventures. Designed for a tight fit, this base layer is worn close to the skin as to keep you warm and dry while ensuring maximum comfort. Sherpa polypro has the lowest thermal conductivity of any traditional fabric, which allows your body to retain its natural heat. The technical fabric does not absorb moisture, keeping you dry while ensuring that moisture is generated it is wicked away from the body, leaving a warm layer of air next to the skin. The lightweight, quick dry qualities of this thermal means that it is easy to keep fresh for multi day users. Ideal for all activities from hiking, skiing to bikeriding, you can always perform at your best and in comfort with this essential wardrobe staple. Comfortable polypropylene Ultra soft to touch Lightweight superior warmth (190 GSM) Raglan sleeves for comfort Excellent moisture management Quick drying Easy care (machine washable)