ADVENTURE READY. With ThermoBall Eco insulation, a quilting pattern that helps reduce cold spots and a great fit, this stylish hoodie is perfect for winter hikes and other outdoor pursuits. THERMOBALL ECO INSULATION. A sustainably-conscious alternative to down, Thermoball Eco uses small, round synthetic fiber clusters to mimic down insulation. By trapping heat in small air pockets, it minimizes cold spots to keep you warmer for longer. RECYCLED FABRIC. Made from an eco-conscious recycled fabric, this water-resistant jacket features a Durable Water-Repellent (DWR) finish for added protection from the elements and delivers cozy comfort for casual nights or adventure days.