Under Armour AF Storm Big Logo Hoody - Boy39;s Fleece,Polyester Imported Constructed of 100% polyester Armour Fleece fabric. Armour Fleece fabrication delivers a brushed inner layer and a quick-drying lightweight outer layer. UA Storm gear uses a DWR finish to repel water. Signature Moisture Transport System keeps you dry and comfortable. Three-piece hood construction for superior fit.