Sherpa Kid's long sleeve thermal top is made from ultra soft technical PCD II polypro that provides outstanding insulation & breathability and will work to retain natural body heat for superior warmth. Polypro is a lightweight, affordable thermal option that never compensates in quality and warmth and will last the test of time. It will not absorb moisture, keeping you dry and protecting your skin for rubbing and abrasion making it easy to keep fresh for multi day users. Featuring quick dry properties and providing snug warmth and comfort without the weight our PCD II polypro range is the perfect option for overnight hikes and tramping in the outdoors or for general winter comfort around the house. Polypropylene Long Sleeve Top Features The most comfortable polypropylene Ultra soft to touch Lightweight superior warmth (190 GSM) Raglan sleeves for comfort Excellent moisture management Quick drying Polypropylene Fabric Care Machine wash. Do not tumble dry or iron. Dries very quickly. Full details on the care label.